Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Tammi Kwan

Bib: 22817FAge: N/A

BC

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 44%
Gender (Female)
#0 / 12578
Top 30%
Masters (Masters Women)
#0 / 6862
Top 14%
Age Group (F45-49)
#0 / 1786
Top 15%
Race Day Weather
51°/41°F
overcast clouds
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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
24:58
3.11 mi
Rank: #17202
Start5K
24:58 | 8:03/mi
10K
49:12
6.21 mi
Rank: #16442 (+760)
5K10K
24:14 | 7:48/mi
15K
1:13:17
9.32 mi
Rank: #15950 (+492)
10K15K
24:05 | 7:46/mi
20K
1:37:51
12.43 mi
Rank: #15772 (+178)
15K20K
24:34 | 7:55/mi
HALF
1:43:07
13.11 mi
Rank: #15723 (+49)
20KHALF
5:16 | 7:44/mi
25K
2:02:05
15.53 mi
Rank: #15426 (+297)
HALF25K
18:58 | 7:50/mi
30K
2:26:45
18.64 mi
Rank: #14951 (+475)
25K30K
24:40 | 7:57/mi
20M
2:37:27
20.00 mi
Rank: #14695 (+256)
30K20M
10:42 | 7:53/mi
21M
2:45:25
21.00 mi
Rank: #14352 (+343)
20M21M
7:58 | 7:58/mi
35K
2:50:53
21.75 mi
Rank: #14162 (+190)
21M35K
5:28 | 7:19/mi
23M
3:00:07
23.00 mi
Rank: #13778 (+384)
35K23M
9:14 | 7:23/mi
24M
3:07:20
24.00 mi
Rank: #13478 (+300)
23M24M
7:13 | 7:13/mi
40K
3:13:27
24.85 mi
Rank: #13187 (+291)
24M40K
6:07 | 7:10/mi
25.2M
3:16:08
25.20 mi
Rank: #13090 (+97)
40K25.2M
2:41 | 7:47/mi
FINISH
3:23:20
26.22 mi
Rank: #12866 (+224)
25.2MFINISH
7:12 | 7:04/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:43:07
Pace7:52 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:13
Pace7:39 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:3424:588:0324:58
8:03
-
10K
6.21 mi11:51:4849:127:5624:14
7:48
-0:15
15K
9.32 mi12:15:531:13:177:5224:05
7:46
-0:02
20K
12.43 mi12:40:271:37:517:5324:34
7:55
+0:09
HALF
13.11 mi12:45:431:43:077:525:16
7:44
-0:11
25K
15.53 mi13:04:412:02:057:5218:58
7:50
+0:06
30K
18.64 mi13:29:212:26:457:5324:40
7:57
+0:07
20M
20.00 mi13:40:032:37:277:5310:42
7:53
-0:04
21M
21.00 mi13:48:012:45:257:537:58
7:58
+0:05
35K
21.75 mi13:53:292:50:537:525:28
7:19
-0:39
23M
23.00 mi14:02:433:00:077:509:14
7:23
+0:04
24M
24.00 mi14:09:563:07:207:497:13
7:13
-0:10
40K
24.85 mi14:16:033:13:277:476:07
7:10
-0:03
25.2M
25.20 mi14:18:443:16:087:472:41
7:47
+0:37
FINISH
26.22 mi14:25:563:23:207:467:12
7:04
-0:43

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

7:04 /mi

Average Pace

7:46 /mi

Slowest Pace

8:03 /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

1:04:35

32% of race

Time at Steady Pace

2:18:45

68% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:27:3424:588:0324:58
8:03
#17202
10K
6.21 mi11:51:4849:127:5624:14
7:48
#16442
15K
9.32 mi12:15:531:13:177:5224:05
7:46
#15950
20K
12.43 mi12:40:271:37:517:5324:34
7:55
#15772
HALF
13.11 mi12:45:431:43:077:525:16
7:44
#15723
25K
15.53 mi13:04:412:02:057:5218:58
7:50
#15426
30K
18.64 mi13:29:212:26:457:5324:40
7:57
#14951
20M
20.00 mi13:40:032:37:277:5310:42
7:53
#14695
21M
21.00 mi13:48:012:45:257:537:58
7:58
#14352
35K
21.75 mi13:53:292:50:537:525:28
7:19
#14162
23M
23.00 mi14:02:433:00:077:509:14
7:23
#13778
24M
24.00 mi14:09:563:07:207:497:13
7:13
#13478
40K
24.85 mi14:16:033:13:277:476:07
7:10
#13187
25.2M
25.20 mi14:18:443:16:087:472:41
7:47
#13090
FINISH
26.22 mi14:25:563:23:207:467:12
7:04
#12866
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi172026033603314938(Top 51%)4700(Top 37%)4700(Top 263%)
10K6.21 mi3.10 mi16442+7605593+4405593+44015639(Top 54%)5096(Top 41%)5096(Top 285%)
15K9.32 mi3.11 mi15950+4925298+2955298+29514938(Top 51%)4700(Top 37%)4700(Top 263%)
20K12.43 mi3.11 mi15772+1785215+835215+8315386(Top 53%)5018(Top 40%)5018(Top 281%)
HALF13.11 mi0.68 mi15723+495191+245191+2414948(Top 52%)4669(Top 37%)4669(Top 261%)
25K15.53 mi2.42 mi15426+2975019+1725019+17214001(Top 48%)4290(Top 34%)4290(Top 240%)
30K18.64 mi3.11 mi14951+4754762+2574762+25713052(Top 45%)3869(Top 31%)3869(Top 217%)
20M20.00 mi1.36 mi14695+2564634+1284634+12811964(Top 41%)3388(Top 27%)3388(Top 190%)
21M21.00 mi1.00 mi14352+3434450+1844450+1849723(Top 34%)2379(Top 19%)2379(Top 133%)
35K21.75 mi0.75 mi14162+1904365+854365+859447(Top 33%)2249(Top 18%)2249(Top 126%)
23M23.00 mi1.25 mi13778+3844180+1854180+1858025(Top 28%)1662(Top 13%)1662(Top 93%)
24M24.00 mi1.00 mi13478+3004034+1464034+1468036(Top 28%)1755(Top 14%)1755(Top 98%)
40K24.85 mi0.85 mi13187+2913881+1533881+1536512(Top 22%)1187(Top 9%)1187(Top 66%)
25.2M25.20 mi0.35 mi13090+973830+513830+517118(Top 25%)1516(Top 12%)1516(Top 85%)
FINISH26.22 mi1.02 mi12866+2243750+803750+808137(Top 28%)2001(Top 16%)2001(Top 112%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21
+97ft-345ft

Overall

14938

Females

4700

F45-49

4700

5K→10K

3.1 - 6.2 mi

Top 54%
×5
+79ft-138ft

Overall

15639

Females

5096

F45-49

5096

10K→15K

6.2 - 9.3 mi

Top 51%
×3
+67ft-78ft

Overall

14938

Females

4700

F45-49

4700

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15386

Females

5018

F45-49

5018

20K→HALF

12.4 - 13.1 mi

Top 52%
×2
+19ft-37ft

Overall

14948

Females

4669

F45-49

4669

HALF→25K

13.1 - 15.5 mi

Top 48%
×4
+66ft-88ft

Overall

14001

Females

4290

F45-49

4290

25K→30K

15.5 - 18.6 mi

Top 45%
×9
+181ft-148ft

Overall

13052

Females

3869

F45-49

3869

30K→20M

18.6 - 20.0 mi

Top 41%
×5
+64ft-50ft

Overall

11964

Females

3388

F45-49

3388

20M→21M

20.0 - 21.0 mi

Top 34%
×8
+106ft-24ft

Overall

9723

Females

2379

F45-49

2379

21M→35K

21.0 - 21.8 mi

Top 33%
×7
+17ft-86ft

Overall

9447

Females

2249

F45-49

2249

35K→23M

21.8 - 23.0 mi

Top 28%
×5
+23ft-63ft

Overall

8025

Females

1662

F45-49

1662

23M→24M

23.0 - 24.0 mi

Top 28%
×6
+12ft-82ft

Overall

8036

Females

1755

F45-49

1755

24M→40K

24.0 - 24.9 mi

Top 22%
×1
+6ft-20ft

Overall

6512

Females

1187

F45-49

1187

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1
+13ft-16ft

Overall

7118

Females

1516

F45-49

1516

25.2M→FINISH

25.2 - 26.2 mi

Top 28%
×2
+22ft-21ft

Overall

8137

Females

2001

F45-49

2001

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4618*
Passed By
282
Net Change
+4336
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17202
5K10K834*74+760#17202#16442
10K15K532*40+492#16442#15950
15K20K273*95+178#15950#15772
20KHALF7021+49#15772#15723
HALF25K310*13+297#15723#15426
25K30K501*26+475#15426#14951
30K20M262*6+256#14951#14695
20M21M343*0+343#14695#14352
21M35K1911+190#14352#14162
35K23M384*0+384#14162#13778
23M24M301*1+300#13778#13478
24M40K291*0+291#13478#13187
40K25.2M970+97#13187#13090
25.2MFINISH229*5+224#13090#12866
TOTALS4618*282+4336

* 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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