Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Kelly Williams

Bib: 16620FAge: N/A

ID

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 45%
Gender (Female)
#0 / 12578
Top 30%
Age Group (F18-39)
#0 / 5716
Top 49%
Race Day Weather
51°/41°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
23:42
3.11 mi
Rank: #13903
Start5K
23:42 | 7:38/mi
10K
48:06
6.21 mi
Rank: #14981 (-1078)
5K10K
24:24 | 7:52/mi
15K
1:13:33
9.32 mi
Rank: #16181 (-1200)
10K15K
25:27 | 8:12/mi
20K
1:37:55
12.43 mi
Rank: #15818 (+363)
15K20K
24:22 | 7:51/mi
HALF
1:43:13
13.11 mi
Rank: #15798 (+20)
20KHALF
5:18 | 7:47/mi
25K
2:02:11
15.53 mi
Rank: #15476 (+322)
HALF25K
18:58 | 7:50/mi
30K
2:26:41
18.64 mi
Rank: #14926 (+550)
25K30K
24:30 | 7:54/mi
20M
2:37:20
20.00 mi
Rank: #14646 (+280)
30K20M
10:39 | 7:51/mi
21M
2:45:22
21.00 mi
Rank: #14339 (+307)
20M21M
8:02 | 8:02/mi
35K
2:50:45
21.75 mi
Rank: #14115 (+224)
21M35K
5:23 | 7:12/mi
23M
3:00:17
23.00 mi
Rank: #13841 (+274)
35K23M
9:32 | 7:38/mi
24M
3:07:22
24.00 mi
Rank: #13492 (+349)
23M24M
7:05 | 7:05/mi
40K
3:13:50
24.85 mi
Rank: #13319 (+173)
24M40K
6:28 | 7:34/mi
25.2M
3:16:35
25.20 mi
Rank: #13221 (+98)
40K25.2M
2:45 | 7:59/mi
FINISH
3:23:39
26.22 mi
Rank: #12966 (+255)
25.2MFINISH
7:04 | 6:57/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:43:13
Pace7:53 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:26
Pace7:40 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4023:427:3823:42
7:38
-
10K
6.21 mi11:38:0448:067:4524:24
7:52
+0:14
15K
9.32 mi12:03:311:13:337:5425:27
8:12
+0:20
20K
12.43 mi12:27:531:37:557:5324:22
7:51
-0:21
HALF
13.11 mi12:33:111:43:137:535:18
7:47
-0:04
25K
15.53 mi12:52:092:02:117:5218:58
7:50
+0:03
30K
18.64 mi13:16:392:26:417:5324:30
7:54
+0:04
20M
20.00 mi13:27:182:37:207:5310:39
7:51
-0:03
21M
21.00 mi13:35:202:45:227:538:02
8:02
+0:11
35K
21.75 mi13:40:432:50:457:525:23
7:12
-0:50
23M
23.00 mi13:50:153:00:177:519:32
7:38
+0:26
24M
24.00 mi13:57:203:07:227:497:05
7:05
-0:33
40K
24.85 mi14:03:483:13:507:486:28
7:34
+0:29
25.2M
25.20 mi14:06:333:16:357:492:45
7:59
+0:25
FINISH
26.22 mi14:13:373:23:397:477:04
6:57
-1:02

Checkpoint Splits Visualizations

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

📈Pace 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

6:57 /mi

Average Pace

7:46 /mi

Slowest Pace

8:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

59:14

29% of race

Time at Steady Pace

2:24:25

71% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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 mi11:13:4023:427:3823:42
7:38
#13903
10K
6.21 mi11:38:0448:067:4524:24
7:52
#14981
15K
9.32 mi12:03:311:13:337:5425:27
8:12
#16181
20K
12.43 mi12:27:531:37:557:5324:22
7:51
#15818
HALF
13.11 mi12:33:111:43:137:535:18
7:47
#15798
25K
15.53 mi12:52:092:02:117:5218:58
7:50
#15476
30K
18.64 mi13:16:392:26:417:5324:30
7:54
#14926
20M
20.00 mi13:27:182:37:207:5310:39
7:51
#14646
21M
21.00 mi13:35:202:45:227:538:02
8:02
#14339
35K
21.75 mi13:40:432:50:457:525:23
7:12
#14115
23M
23.00 mi13:50:153:00:177:519:32
7:38
#13841
24M
24.00 mi13:57:203:07:227:497:05
7:05
#13492
40K
24.85 mi14:03:483:13:507:486:28
7:34
#13319
25.2M
25.20 mi14:06:333:16:357:492:45
7:59
#13221
FINISH
26.22 mi14:13:373:23:397:477:04
6:57
#12966
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 mi139034018401818295(Top 63%)6631(Top 53%)6631(Top 116%)
10K6.21 mi3.10 mi14981-10784696-6784696-67816091(Top 55%)5355(Top 43%)5355(Top 94%)
15K9.32 mi3.11 mi16181-12005443-7475443-74718295(Top 63%)6631(Top 53%)6631(Top 116%)
20K12.43 mi3.11 mi15818+3635240+2035240+20314862(Top 51%)4707(Top 37%)4707(Top 82%)
HALF13.11 mi0.68 mi15798+205227+135227+1315359(Top 53%)4925(Top 39%)4925(Top 86%)
25K15.53 mi2.42 mi15476+3225055+1725055+17214002(Top 48%)4291(Top 34%)4291(Top 75%)
30K18.64 mi3.11 mi14926+5504746+3094746+30912643(Top 44%)3654(Top 29%)3654(Top 64%)
20M20.00 mi1.36 mi14646+2804607+1394607+13911684(Top 40%)3252(Top 26%)3252(Top 57%)
21M21.00 mi1.00 mi14339+3074440+1674440+16710160(Top 35%)2581(Top 21%)2581(Top 45%)
35K21.75 mi0.75 mi14115+2244338+1024338+1028605(Top 30%)1854(Top 15%)1854(Top 32%)
23M23.00 mi1.25 mi13841+2744217+1214217+1219749(Top 34%)2479(Top 20%)2479(Top 43%)
24M24.00 mi1.00 mi13492+3494042+1754042+1757112(Top 25%)1354(Top 11%)1354(Top 24%)
40K24.85 mi0.85 mi13319+1733958+843958+849367(Top 32%)2465(Top 20%)2465(Top 43%)
25.2M25.20 mi0.35 mi13221+983908+503908+508332(Top 29%)2063(Top 16%)2063(Top 36%)
FINISH26.22 mi1.02 mi12966+2553797+1113797+1117104(Top 24%)1535(Top 12%)1535(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18295

Females

6631

F18-39

6631

5K→10K

3.1 - 6.2 mi

Top 55%
×5
+79ft-138ft

Overall

16091

Females

5355

F18-39

5355

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18295

Females

6631

F18-39

6631

15K→20K

9.3 - 12.4 mi

Top 51%
×5
+106ft-86ft

Overall

14862

Females

4707

F18-39

4707

20K→HALF

12.4 - 13.1 mi

Top 53%
×2
+19ft-37ft

Overall

15359

Females

4925

F18-39

4925

HALF→25K

13.1 - 15.5 mi

Top 48%
×4
+66ft-88ft

Overall

14002

Females

4291

F18-39

4291

25K→30K

15.5 - 18.6 mi

Top 44%
×9
+181ft-148ft

Overall

12643

Females

3654

F18-39

3654

30K→20M

18.6 - 20.0 mi

Top 40%
×5
+64ft-50ft

Overall

11684

Females

3252

F18-39

3252

20M→21M

20.0 - 21.0 mi

Top 35%
×8
+106ft-24ft

Overall

10160

Females

2581

F18-39

2581

21M→35K

21.0 - 21.8 mi

Top 30%
×7
+17ft-86ft

Overall

8605

Females

1854

F18-39

1854

35K→23M

21.8 - 23.0 mi

Top 34%
×5
+23ft-63ft

Overall

9749

Females

2479

F18-39

2479

23M→24M

23.0 - 24.0 mi

Top 25%
×6
+12ft-82ft

Overall

7112

Females

1354

F18-39

1354

24M→40K

24.0 - 24.9 mi

Top 32%
×1
+6ft-20ft

Overall

9367

Females

2465

F18-39

2465

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1
+13ft-16ft

Overall

8332

Females

2063

F18-39

2063

25.2M→FINISH

25.2 - 26.2 mi

Top 24%
×2
+22ft-21ft

Overall

7104

Females

1535

F18-39

1535

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3414*
Passed By
522
Net Change
+937
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13903
5K10K52200-1078#13903#14981
10K15K25200-1200#14981#16181
15K20K407*44+363#16181#15818
20KHALF4929+20#15818#15798
HALF25K335*13+322#15798#15476
25K30K564*14+550#15476#14926
30K20M284*4+280#14926#14646
20M21M311*4+307#14646#14339
21M35K226*2+224#14339#14115
35K23M278*4+274#14115#13841
23M24M349*0+349#13841#13492
24M40K1774+173#13492#13319
40K25.2M1002+98#13319#13221
25.2MFINISH257*2+255#13221#12966
TOTALS3414*522+937

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

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

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OTQ

Olympic Trials Qualifying analysis available

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