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BOSTON MARATHON 2025

Hsiao Yun Chen

Bib: 22947•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:43
Rank: #23381
Start → 5K
28:43 | 9:15/mi
10K· 6.21 mi
57:09
Rank: #23201 (+180)
5K → 10K
28:26 | 9:09/mi
15K· 9.32 mi
1:28:26
Rank: #24005 (-804)
10K → 15K
31:17 | 10:04/mi
20K· 12.43 mi
1:59:14
Rank: #23999 (+6)
15K → 20K
30:48 | 9:55/mi
Half· 13.11 mi
2:06:40
Rank: #24197 (-198)
20K → Half
7:26 | 10:54/mi
25K· 15.53 mi
2:32:18
Rank: #24258 (-61)
Half → 25K
25:38 | 10:34/mi
30K· 18.64 mi
3:07:47
Rank: #24397 (-139)
25K → 30K
35:29 | 11:25/mi
20M
3:22:15
Rank: #24288 (+109)
30K → 20M
14:28 | 10:39/mi
21M
3:34:31
Rank: #24269 (+19)
20M → 21M
12:16 | 12:16/mi
35K· 21.75 mi
3:43:11
Rank: #24308 (-39)
21M → 35K
8:40 | 11:35/mi
23M
3:56:26
Rank: #24200 (+108)
35K → 23M
13:15 | 10:35/mi
24M
4:06:54
Rank: #24148 (+52)
23M → 24M
10:28 | 10:28/mi
40K· 24.85 mi
4:15:56
Rank: #24078 (+70)
24M → 40K
9:02 | 10:34/mi
25.2M
4:20:12
Rank: #24079 (-1)
40K → 25.2M
4:16 | 12:22/mi
Finish· 26.22 mi
4:31:29
Rank: #24148 (-69)
25.2M → Finish
11:17 | 11:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:40
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:24:49
Pace11:03 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:2628:439:1528:43
9:15
-
10K
6.21 mi11:53:5257:099:1228:26
9:09
-0:06
15K
9.32 mi12:25:091:28:269:2931:17
10:04
+0:55
20K
12.43 mi12:55:571:59:149:3630:48
9:55
-0:09
Half
13.11 mi13:03:232:06:409:407:26
10:54
+0:59
25K
15.53 mi13:29:012:32:189:4825:38
10:34
-0:20
30K
18.64 mi14:04:303:07:4710:0435:29
11:25
+0:51
20M
20.00 mi14:18:583:22:1510:0714:28
10:39
-0:46
21M
21.00 mi14:31:143:34:3110:1312:16
12:16
+1:37
35K
21.75 mi14:39:543:43:1110:168:40
11:35
-0:41
23M
23.00 mi14:53:093:56:2610:1713:15
10:35
-1:00
24M
24.00 mi15:03:374:06:5410:1710:28
10:28
-0:07
40K
24.85 mi15:12:394:15:5610:189:02
10:34
+0:06
25.2M
25.20 mi15:16:554:20:1210:204:16
12:22
+1:48
Finish
26.22 mi15:28:124:31:2910:2211:17
11:04
-1:18

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

9:09 /mi

Average Pace

10:22 /mi

Slowest Pace

12:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:14

44% of race

Time at Steady Pace

1:20:17

30% of race

Time at Slower Pace

1:11:58

27% of race

Average Pace: 10:21 /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 mi11:25:2628:439:1528:43
9:15
#23381
10K
6.21 mi11:53:5257:099:1228:26
9:09
#23201
15K
9.32 mi12:25:091:28:269:2931:17
10:04
#24005
20K
12.43 mi12:55:571:59:149:3630:48
9:55
#23999
Half
13.11 mi13:03:232:06:409:407:26
10:54
#24197
25K
15.53 mi13:29:012:32:189:4825:38
10:34
#24258
30K
18.64 mi14:04:303:07:4710:0435:29
11:25
#24397
20M
20.00 mi14:18:583:22:1510:0714:28
10:39
#24288
21M
21.00 mi14:31:143:34:3110:1312:16
12:16
#24269
35K
21.75 mi14:39:543:43:1110:168:40
11:35
#24308
23M
23.00 mi14:53:093:56:2610:1713:15
10:35
#24200
24M
24.00 mi15:03:374:06:5410:1710:28
10:28
#24148
40K
24.85 mi15:12:394:15:5610:189:02
10:34
#24078
25.2M
25.20 mi15:16:554:20:1210:204:16
12:22
#24079
Finish
26.22 mi15:28:124:31:2910:2211:17
11:04
#24148
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi233819380938025137(Top 88%)10299(Top 84%)10299(Top 1036%)
10K6.21 mi3.10 mi23201+1809259+1219259+12123016(Top 81%)9147(Top 75%)9147(Top 920%)
15K9.32 mi3.11 mi24005-8049678-4199678-41925137(Top 88%)10299(Top 84%)10299(Top 1036%)
20K12.43 mi3.11 mi23999+69693-159693-1524055(Top 85%)9739(Top 80%)9739(Top 980%)
Half13.11 mi0.68 mi24197-1989809-1169809-11626382(Top 93%)11046(Top 90%)11046(Top 1111%)
25K15.53 mi2.42 mi24258-619854-459854-4524508(Top 86%)10020(Top 82%)10020(Top 1008%)
30K18.64 mi3.11 mi24397-1399947-939947-9324738(Top 87%)10258(Top 84%)10258(Top 1032%)
20M20.00 mi1.36 mi24288+1099906+419906+4122832(Top 80%)9338(Top 76%)9338(Top 939%)
21M21.00 mi1.00 mi24269+199912-69912-624051(Top 85%)10063(Top 82%)10063(Top 1012%)
35K21.75 mi0.75 mi24308-399944-329944-3225247(Top 89%)10713(Top 88%)10713(Top 1078%)
23M23.00 mi1.25 mi24200+1089906+389906+3822238(Top 78%)9194(Top 75%)9194(Top 925%)
24M24.00 mi1.00 mi24148+529894+129894+1222742(Top 80%)9511(Top 78%)9511(Top 957%)
40K24.85 mi0.85 mi24078+709872+229872+2222118(Top 78%)9268(Top 76%)9268(Top 932%)
25.2M25.20 mi0.35 mi24079-19876-49876-423982(Top 84%)10158(Top 83%)10158(Top 1022%)
Finish26.22 mi1.02 mi24148-699914-389914-3825521(Top 90%)10919(Top 89%)10919(Top 1098%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

25137

Females

10299

F55-59

10299

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

23016

Females

9147

F55-59

9147

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

25137

Females

10299

F55-59

10299

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24055

Females

9739

F55-59

9739

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

26382

Females

11046

F55-59

11046

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24508

Females

10020

F55-59

10020

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

24738

Females

10258

F55-59

10258

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22832

Females

9338

F55-59

9338

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

24051

Females

10063

F55-59

10063

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25247

Females

10713

F55-59

10713

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22238

Females

9194

F55-59

9194

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

22742

Females

9511

F55-59

9511

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22118

Females

9268

F55-59

9268

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23982

Females

10158

F55-59

10158

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25521

Females

10919

F55-59

10919

Passing Analysis

Category:
Athletes Passed
1219
Passed By
1986
Net Change
-767
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23381
5K → 10K333153+180#23381#23201
10K → 15K32836-804#23201#24005
15K → 20K147141+6#24005#23999
20K → Half1199-198#23999#24197
Half → 25K94155-61#24197#24258
25K → 30K90229-139#24258#24397
30K → 20M12112+109#24397#24288
20M → 21M7253+19#24288#24269
21M → 35K2362-39#24269#24308
35K → 23M12113+108#24308#24200
23M → 24M6917+52#24200#24148
24M → 40K8414+70#24148#24078
40K → 25.2M1718-1#24078#24079
25.2M → Finish1584-69#24079#24148
TOTALS12191986-767
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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