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BOSTON MARATHON 2025

Ya-Hua Hsieh

Bib: 19139 F TW

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
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
7:57/mi
24:42
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:13/mi
50:14
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:30/mi
1:16:39
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:45/mi
1:43:51
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:36/mi
1:49:43
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:56/mi
2:11:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:44/mi
2:41:37
↑ 181↓ 1480.2%
138 ft elev
20M
9:44/mi
2:54:50
↑ 64↓ 500.2%
148 ft elev
21M
11:00/mi
3:05:50
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:23/mi
3:12:51
↑ 17↓ 861.7%
156 ft elev
23M
9:35/mi
3:24:51
↑ 23↓ 630.6%
116 ft elev
24M
9:20/mi
3:34:11
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:38/mi
3:42:25
↓ 200.3%
20 ft elev
25.2M
10:29/mi
3:46:02
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:05/mi
3:55:17
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:49:438:22 /mi⚡ faster
2nd Half
2:05:349:35 /mi+14.4%
Positive split — 14.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:427:573.11 mi24:42
7:57
-
10K
50:148:053.10 mi25:32
8:13
+0:16
15K
1:16:398:133.11 mi26:25
8:30
+0:17
20K
1:43:518:213.11 mi27:12
8:45
+0:15
Half(13.11 mi)
1:49:438:220.68 mi5:52
8:36
-0:09
25K
2:11:228:272.42 mi21:39
8:56
+0:20
30K
2:41:378:403.11 mi30:15
9:44
+0:48
20M
2:54:508:441.36 mi13:13
9:44
0:00
21M
3:05:508:511.00 mi11:00
11:00
+1:16
35K
3:12:518:520.75 mi7:01
9:23
-1:37
23M
3:24:518:541.25 mi12:00
9:35
+0:12
24M
3:34:118:551.00 mi9:20
9:20
-0:15
40K
3:42:258:570.85 mi8:14
9:38
+0:18
25.2M
3:46:028:580.35 mi3:37
10:29
+0:51
Finish(26.22 mi)
3:55:178:591.02 mi9:15
9:05
-1:24
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:57 /mi

Average Pace

8:59 /mi

Slowest Pace

11:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:11:22

56% of race

Time at Steady Pace

45:50

19% of race

Time at Slower Pace

58:05

25% of race

Average Pace: 8:58 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi16221528452841935170957095
10K3.10 mi17168-9475828-5445828-5441803463166316
15K3.11 mi17919-7516278-4506278-4501935170957095
20K3.11 mi18364-4456547-2696547-2691971873287328
Half(13.11 mi)0.68 mi18440-766583-366583-361985573937393
25K2.42 mi18631-1916712-1296712-1291958073017301
30K3.11 mi19173-5427058-3467058-3462079881168116
20M1.36 mi19246-737124-667124-662003778117811
21M1.00 mi19433-1877251-1277251-1272140086508650
35K0.75 mi19459-267279-287279-281988579167916
23M1.25 mi19447+127311-327311-321904075347534
24M1.00 mi19424+237319-87319-81898075357535
40K0.85 mi19415+97330-117330-111922077407740
25.2M0.35 mi19407+87334-47334-41899476337633
Finish(26.22 mi)1.02 mi19398+97350-167350-161943478347834

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19351

Females

7095

F40-44

7095

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

18034

Females

6316

F40-44

6316

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19351

Females

7095

F40-44

7095

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19718

Females

7328

F40-44

7328

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19855

Females

7393

F40-44

7393

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19580

Females

7301

F40-44

7301

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20798

Females

8116

F40-44

8116

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20037

Females

7811

F40-44

7811

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21400

Females

8650

F40-44

8650

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19885

Females

7916

F40-44

7916

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19040

Females

7534

F40-44

7534

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18980

Females

7535

F40-44

7535

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19220

Females

7740

F40-44

7740

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

18994

Females

7633

F40-44

7633

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19434

Females

7834

F40-44

7834

Passing Analysis

Category:
Passed
955
Passed By
4132
Net Change
-3177
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16221
5K → 10K731020-947#16221#17168
10K → 15K48799-751#17168#17919
15K → 20K81526-445#17919#18364
20K → Half1288-76#18364#18440
Half → 25K116307-191#18440#18631
25K → 30K106648-542#18631#19173
30K → 20M86159-73#19173#19246
20M → 21M47234-187#19246#19433
21M → 35K4773-26#19433#19459
35K → 23M10088+12#19459#19447
23M → 24M7451+23#19447#19424
24M → 40K6859+9#19424#19415
40K → 25.2M3426+8#19415#19407
25.2M → Finish6354+9#19407#19398
TOTALS9554132-3177

Passing Charts

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