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BOSTON MARATHON 2025

Allison Yeung

Bib: 23727 F HK

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:33/mi
26:35
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:39/mi
53:27
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:50/mi
1:20:55
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:02/mi
1:48:58
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:40/mi
1:54:53
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:09/mi
2:17:03
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:35/mi
2:46:50
↑ 181↓ 1480.2%
138 ft elev
20M
9:44/mi
3:00:04
↑ 64↓ 500.2%
148 ft elev
21M
10:27/mi
3:10:31
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:19/mi
3:17:29
↑ 17↓ 861.7%
156 ft elev
23M
9:14/mi
3:29:03
↑ 23↓ 630.6%
116 ft elev
24M
9:18/mi
3:38:21
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:23/mi
3:46:22
↓ 200.3%
20 ft elev
25.2M
10:35/mi
3:50:01
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:20/mi
3:59:32
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:53
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:04:39
Pace9:31 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5126:358:3326:35
8:33
-
10K
6.21 mi11:51:4353:278:3626:52
8:39
+0:06
15K
9.32 mi12:19:111:20:558:4127:28
8:50
+0:11
20K
12.43 mi12:47:141:48:588:4628:03
9:02
+0:12
Half
13.11 mi12:53:091:54:538:465:55
8:40
-0:22
25K
15.53 mi13:15:192:17:038:4922:10
9:09
+0:29
30K
18.64 mi13:45:062:46:508:5729:47
9:35
+0:26
20M
20.00 mi13:58:203:00:049:0013:14
9:44
+0:09
21M
21.00 mi14:08:473:10:319:0410:27
10:27
+0:43
35K
21.75 mi14:15:453:17:299:056:58
9:19
-1:08
23M
23.00 mi14:27:193:29:039:0511:34
9:14
-0:05
24M
24.00 mi14:36:373:38:219:069:18
9:18
+0:04
40K
24.85 mi14:44:383:46:229:068:01
9:23
+0:05
25.2M
25.20 mi14:48:173:50:019:083:39
10:35
+1:12
Finish
26.22 mi14:57:483:59:329:099:31
9:20
-1:15

Checkpoints & Pacing

📈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

8:33 /mi

Average Pace

9:09 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:50

36% of race

Time at Steady Pace

2:05:22

52% of race

Time at Slower Pace

27:20

11% of race

Average Pace: 9:08 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:24:5126:358:3326:35
8:33
#20239
10K
6.21 mi11:51:4353:278:3626:52
8:39
#20407
15K
9.32 mi12:19:111:20:558:4127:28
8:50
#20652
20K
12.43 mi12:47:141:48:588:4628:03
9:02
#20763
Half
13.11 mi12:53:091:54:538:465:55
8:40
#20744
25K
15.53 mi13:15:192:17:038:4922:10
9:09
#20726
30K
18.64 mi13:45:062:46:508:5729:47
9:35
#20626
20M
20.00 mi13:58:203:00:049:0013:14
9:44
#20573
21M
21.00 mi14:08:473:10:319:0410:27
10:27
#20531
35K
21.75 mi14:15:453:17:299:056:58
9:19
#20502
23M
23.00 mi14:27:193:29:039:0511:34
9:14
#20325
24M
24.00 mi14:36:373:38:219:069:18
9:18
#20275
40K
24.85 mi14:44:383:46:229:068:01
9:23
#20202
25.2M
25.20 mi14:48:173:50:019:083:39
10:35
#20202
Finish
26.22 mi14:57:483:59:329:099:31
9:20
#20264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi202397643764321245(Top 75%)8134(Top 67%)8134(Top 624%)
10K6.21 mi3.10 mi20407-1687715-727715-7220600(Top 73%)7805(Top 64%)7805(Top 599%)
15K9.32 mi3.11 mi20652-2457837-1227837-12221245(Top 75%)8134(Top 67%)8134(Top 624%)
20K12.43 mi3.11 mi20763-1117906-697906-6921131(Top 74%)8127(Top 66%)8127(Top 624%)
Half13.11 mi0.68 mi20744+197898+87898+820256(Top 71%)7629(Top 62%)7629(Top 585%)
25K15.53 mi2.42 mi20726+187891+77891+720543(Top 72%)7838(Top 64%)7838(Top 602%)
30K18.64 mi3.11 mi20626+1007887+47887+420305(Top 71%)7825(Top 64%)7825(Top 601%)
20M20.00 mi1.36 mi20573+537868+197868+1920078(Top 71%)7835(Top 64%)7835(Top 601%)
21M21.00 mi1.00 mi20531+427871-37871-319862(Top 70%)7833(Top 64%)7833(Top 601%)
35K21.75 mi0.75 mi20502+297867+47867+419647(Top 69%)7795(Top 64%)7795(Top 598%)
23M23.00 mi1.25 mi20325+1777802+657802+6517531(Top 62%)6750(Top 55%)6750(Top 518%)
24M24.00 mi1.00 mi20275+507791+117791+1118841(Top 66%)7466(Top 61%)7466(Top 573%)
40K24.85 mi0.85 mi20202+737772+197772+1918209(Top 64%)7233(Top 59%)7233(Top 555%)
25.2M25.20 mi0.35 mi202027770+27770+219342(Top 68%)7830(Top 64%)7830(Top 601%)
Finish26.22 mi1.02 mi20264-627817-477817-4720556(Top 72%)8423(Top 69%)8423(Top 646%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21245

Females

8134

F50-54

8134

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20600

Females

7805

F50-54

7805

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21245

Females

8134

F50-54

8134

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

21131

Females

8127

F50-54

8127

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20256

Females

7629

F50-54

7629

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20543

Females

7838

F50-54

7838

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20305

Females

7825

F50-54

7825

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20078

Females

7835

F50-54

7835

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19862

Females

7833

F50-54

7833

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19647

Females

7795

F50-54

7795

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17531

Females

6750

F50-54

6750

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18841

Females

7466

F50-54

7466

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18209

Females

7233

F50-54

7233

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19342

Females

7830

F50-54

7830

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20556

Females

8423

F50-54

8423

Passing Analysis

Category:
Athletes Passed
1671
Passed By
1696
Net Change
-25
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20239
5K → 10K206374-168#20239#20407
10K → 15K116361-245#20407#20652
15K → 20K141252-111#20652#20763
20K → Half4223+19#20763#20744
Half → 25K163145+18#20744#20726
25K → 30K263163+100#20726#20626
30K → 20M12471+53#20626#20573
20M → 21M10866+42#20573#20531
21M → 35K6637+29#20531#20502
35K → 23M19215+177#20502#20325
23M → 24M8030+50#20325#20275
24M → 40K9522+73#20275#20202
40K → 25.2M31310#20202#20202
25.2M → Finish44106-62#20202#20264
TOTALS16711696-25
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing