Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Margaret Duffy

Bib: 20478 β€’F β€’Age: N/A

CT

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
29:47
3.11 mi
Rank: #24754
Start β†’ 5K
29:47 | 9:36/mi
10K
59:44
6.21 mi
Rank: #24860 (-106)
5K β†’ 10K
29:57 | 9:39/mi
15K
1:31:00
9.32 mi
Rank: #25194 (-334)
10K β†’ 15K
31:16 | 10:04/mi
20K
2:01:56
12.43 mi
Rank: #25155 (+39)
15K β†’ 20K
30:56 | 9:58/mi
HALF
2:08:28
13.11 mi
Rank: #25128 (+27)
20K β†’ HALF
6:32 | 9:36/mi
25K
2:35:20
15.53 mi
Rank: #25389 (-261)
HALF β†’ 25K
26:52 | 11:05/mi
30K
3:07:59
18.64 mi
Rank: #25191 (+198)
25K β†’ 30K
32:39 | 10:31/mi
20M
3:27:49
20.00 mi
Rank: #25722 (-531)
30K β†’ 20M
19:50 | 14:37/mi
21M
3:39:28
21.00 mi
Rank: #25663 (+59)
20M β†’ 21M
11:39 | 11:39/mi
35K
3:47:01
21.75 mi
Rank: #25573 (+90)
21M β†’ 35K
7:33 | 10:06/mi
23M
4:00:53
23.00 mi
Rank: #25522 (+51)
35K β†’ 23M
13:52 | 11:05/mi
24M
4:11:15
24.00 mi
Rank: #25445 (+77)
23M β†’ 24M
10:22 | 10:22/mi
40K
4:21:05
24.85 mi
Rank: #25427 (+18)
24M β†’ 40K
9:50 | 11:31/mi
25.2M
4:25:07
25.20 mi
Rank: #25391 (+36)
40K β†’ 25.2M
4:02 | 11:42/mi
FINISH
4:34:48
26.22 mi
Rank: #25304 (+87)
25.2M β†’ FINISH
9:41 | 9:31/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:08:28
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:26:20
Pace11:10 /mi
πŸ“ŠPositive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2629:479:3629:47
9:36
-
10K
6.21 mi11:45:2359:449:3729:57
9:39
+0:03
15K
9.32 mi12:16:391:31:009:4631:16
10:04
+0:25
20K
12.43 mi12:47:352:01:569:4930:56
9:58
-0:06
HALF
13.11 mi12:54:072:08:289:486:32
9:36
-0:22
25K
15.53 mi13:20:592:35:2010:0026:52
11:05
+1:29
30K
18.64 mi13:53:383:07:5910:0632:39
10:31
-0:34
20M
20.00 mi14:13:283:27:4910:2419:50
14:37
+4:06
21M
21.00 mi14:25:073:39:2810:2811:39
11:39
-2:58
35K
21.75 mi14:32:403:47:0110:277:33
10:06
-1:33
23M
23.00 mi14:46:324:00:5310:2913:52
11:05
+0:59
24M
24.00 mi14:56:544:11:1510:2910:22
10:22
-0:43
40K
24.85 mi15:06:444:21:0510:319:50
11:31
+1:09
25.2M
25.20 mi15:10:464:25:0710:324:02
11:42
+0:11
FINISH
26.22 mi15:20:274:34:4810:309:41
9:31
-2:11

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:31 /mi

Average Pace

10:29 /mi

Slowest Pace

14:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:15:57

28% of race

Time at Steady Pace

1:52:46

41% of race

Time at Slower Pace

1:26:05

31% of race

Average Pace: 10:29 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:15:2629:479:3629:47
9:36
#24754
10K
6.21 mi11:45:2359:449:3729:57
9:39
#24860
15K
9.32 mi12:16:391:31:009:4631:16
10:04
#25194
20K
12.43 mi12:47:352:01:569:4930:56
9:58
#25155
HALF
13.11 mi12:54:072:08:289:486:32
9:36
#25128
25K
15.53 mi13:20:592:35:2010:0026:52
11:05
#25389
30K
18.64 mi13:53:383:07:5910:0632:39
10:31
#25191
20M
20.00 mi14:13:283:27:4910:2419:50
14:37
#25722
21M
21.00 mi14:25:073:39:2810:2811:39
11:39
#25663
35K
21.75 mi14:32:403:47:0110:277:33
10:06
#25573
23M
23.00 mi14:46:324:00:5310:2913:52
11:05
#25522
24M
24.00 mi14:56:544:11:1510:2910:22
10:22
#25445
40K
24.85 mi15:06:444:21:0510:319:50
11:31
#25427
25.2M
25.20 mi15:10:464:25:0710:324:02
11:42
#25391
FINISH
26.22 mi15:20:274:34:4810:309:41
9:31
#25304
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24754100531005325828(Top 89%)10630(Top 85%)10630(Top 186%)
10K6.21 mi3.10 mi24860-10610104-5110104-5124947(Top 86%)10146(Top 81%)10146(Top 178%)
15K9.32 mi3.11 mi25194-33410285-18110285-18125828(Top 89%)10630(Top 85%)10630(Top 186%)
20K12.43 mi3.11 mi25155+3910279+610279+624937(Top 86%)10167(Top 81%)10167(Top 178%)
HALF13.11 mi0.68 mi25128+2710262+1710262+1724627(Top 85%)10016(Top 80%)10016(Top 175%)
25K15.53 mi2.42 mi25389-26110405-14310405-14326458(Top 91%)11067(Top 88%)11067(Top 194%)
30K18.64 mi3.11 mi25191+19810331+7410331+7424319(Top 84%)10011(Top 80%)10011(Top 175%)
20M20.00 mi1.36 mi25722-53110627-29610627-29628456(Top 98%)12284(Top 98%)12284(Top 215%)
21M21.00 mi1.00 mi25663+5910614+1310614+1324477(Top 84%)10235(Top 81%)10235(Top 179%)
35K21.75 mi0.75 mi25573+9010579+3510579+3523421(Top 81%)9678(Top 77%)9678(Top 169%)
23M23.00 mi1.25 mi25522+5110570+910570+924665(Top 85%)10398(Top 83%)10398(Top 182%)
24M24.00 mi1.00 mi25445+7710543+2710543+2723784(Top 82%)9961(Top 79%)9961(Top 174%)
40K24.85 mi0.85 mi25427+1810544-110544-125116(Top 87%)10687(Top 85%)10687(Top 187%)
25.2M25.20 mi0.35 mi25391+3610529+1510529+1523921(Top 82%)10104(Top 80%)10104(Top 177%)
FINISH26.22 mi1.02 mi25304+8710491+3810491+3822388(Top 77%)9284(Top 74%)9284(Top 162%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
Γ—21
+97ft-345ft

Overall

25828

Females

10630

F18-39

10630

5K→10K

3.1 - 6.2 mi

Top 86%
Γ—5
+79ft-138ft

Overall

24947

Females

10146

F18-39

10146

10K→15K

6.2 - 9.3 mi

Top 89%
Γ—3
+67ft-78ft

Overall

25828

Females

10630

F18-39

10630

15K→20K

9.3 - 12.4 mi

Top 86%
Γ—5
+106ft-86ft

Overall

24937

Females

10167

F18-39

10167

20K→HALF

12.4 - 13.1 mi

Top 85%
Γ—2
+19ft-37ft

Overall

24627

Females

10016

F18-39

10016

HALF→25K

13.1 - 15.5 mi

Top 91%
Γ—4
+66ft-88ft

Overall

26458

Females

11067

F18-39

11067

25K→30K

15.5 - 18.6 mi

Top 84%
Γ—9
+181ft-148ft

Overall

24319

Females

10011

F18-39

10011

30K→20M

18.6 - 20.0 mi

Top 98%
Γ—5
+64ft-50ft

Overall

28456

Females

12284

F18-39

12284

20M→21M

20.0 - 21.0 mi

Top 84%
Γ—8
+106ft-24ft

Overall

24477

Females

10235

F18-39

10235

21M→35K

21.0 - 21.8 mi

Top 81%
Γ—7
+17ft-86ft

Overall

23421

Females

9678

F18-39

9678

35K→23M

21.8 - 23.0 mi

Top 85%
Γ—5
+23ft-63ft

Overall

24665

Females

10398

F18-39

10398

23M→24M

23.0 - 24.0 mi

Top 82%
Γ—6
+12ft-82ft

Overall

23784

Females

9961

F18-39

9961

24M→40K

24.0 - 24.9 mi

Top 87%
Γ—1
+6ft-20ft

Overall

25116

Females

10687

F18-39

10687

40K→25.2M

24.9 - 25.2 mi

Top 82%
Γ—1
+13ft-16ft

Overall

23921

Females

10104

F18-39

10104

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
Γ—2
+22ft-21ft

Overall

22388

Females

9284

F18-39

9284

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1193*
Passed By
1045
Net Change
-550
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24754
5K β†’ 10K176200-106#24754#24860
10K β†’ 15K49200-334#24860#25194
15K β†’ 20K139100+39#25194#25155
20K β†’ HALF3912+27#25155#25128
HALF β†’ 25K33200-261#25128#25389
25K β†’ 30K237*39+198#25389#25191
30K β†’ 20M8200-531#25191#25722
20M β†’ 21M8728+59#25722#25663
21M β†’ 35K922+90#25663#25573
35K β†’ 23M7524+51#25573#25522
23M β†’ 24M814+77#25522#25445
24M β†’ 40K4931+18#25445#25427
40K β†’ 25.2M371+36#25427#25391
25.2M β†’ FINISH914+87#25391#25304
TOTALS1193*1045-550

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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