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BOSTON MARATHON 2025

Yi-Hua Yen

Bib: 2398 M TW

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
7:05/mi
22:00
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:08/mi
44:10
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:25/mi
1:07:11
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:29/mi
1:30:27
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:40/mi
1:35:41
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:50/mi
1:54:41
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:58/mi
2:19:26
↑ 181↓ 1480.2%
138 ft elev
20M
8:21/mi
2:30:47
↑ 64↓ 500.2%
148 ft elev
21M
8:57/mi
2:39:44
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:20/mi
2:45:58
↑ 17↓ 861.7%
156 ft elev
23M
8:32/mi
2:56:39
↑ 23↓ 630.6%
116 ft elev
24M
8:36/mi
3:05:15
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:00/mi
3:12:57
↓ 200.3%
20 ft elev
25.2M
10:26/mi
3:16:33
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:46/mi
3:25:29
↑ 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
1:35:417:18 /mi⚡ faster
2nd Half
1:49:488:23 /mi+14.8%
Positive split — 14.8% 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
22:007:053.11 mi22:00
7:05
-
10K
44:107:063.10 mi22:10
7:08
+0:03
15K
1:07:117:123.11 mi23:01
7:25
+0:17
20K
1:30:277:173.11 mi23:16
7:29
+0:04
Half(13.11 mi)
1:35:417:180.68 mi5:14
7:40
+0:11
25K
1:54:417:232.42 mi19:00
7:50
+0:10
30K
2:19:267:293.11 mi24:45
7:58
+0:08
20M
2:30:477:321.36 mi11:21
8:21
+0:23
21M
2:39:447:361.00 mi8:57
8:57
+0:36
35K
2:45:587:380.75 mi6:14
8:20
-0:37
23M
2:56:397:411.25 mi10:41
8:32
+0:12
24M
3:05:157:431.00 mi8:36
8:36
+0:04
40K
3:12:577:460.85 mi7:42
9:00
+0:24
25.2M
3:16:337:480.35 mi3:36
10:26
+1:26
Finish(26.22 mi)
3:25:297:511.02 mi8:56
8:46
-1:40
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:05 /mi

Average Pace

7:51 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:54:41

56% of race

Time at Steady Pace

1:01:37

30% of race

Time at Slower Pace

29:11

14% of race

Average Pace: 7:50 /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. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi8472730273021095185708570
10K3.10 mi8701-2297424-1227424-122895575817581
15K3.11 mi9395-6947817-3937817-3931095185708570
20K3.11 mi9677-2827925-1087925-1081066083418341
Half(13.11 mi)0.68 mi9865-1888033-1088033-1081310094999499
25K2.42 mi10293-4288222-1898222-1891261591219121
30K3.11 mi10405-112822282221113982548254
20M1.36 mi10594-1898265-438265-431281989148914
21M1.00 mi10725-1318293-288293-281318189378937
35K0.75 mi10847-1228324-318324-311441994519451
23M1.25 mi10983-1368347-238347-231349489308930
24M1.00 mi11158-1758391-448391-441513096329632
40K0.85 mi11380-2228460-698460-69162881003710037
25.2M0.35 mi11536-1568529-698529-69187131115711157
Finish(26.22 mi)1.02 mi11826-2908628-998628-99178381078610786

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10951

Males

8570

M18-39

8570

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8955

Males

7581

M18-39

7581

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10951

Males

8570

M18-39

8570

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10660

Males

8341

M18-39

8341

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

13100

Males

9499

M18-39

9499

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12615

Males

9121

M18-39

9121

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

11139

Males

8254

M18-39

8254

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12819

Males

8914

M18-39

8914

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

13181

Males

8937

M18-39

8937

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14419

Males

9451

M18-39

9451

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13494

Males

8930

M18-39

8930

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

15130

Males

9632

M18-39

9632

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16288

Males

10037

M18-39

10037

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18713

Males

11157

M18-39

11157

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

17838

Males

10786

M18-39

10786

Passing Analysis

Category:
Passed
881
Passed By
4232
Net Change
-3354
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8472
5K → 10K120349-229#8472#8701
10K → 15K36730-694#8701#9395
15K → 20K112394-282#9395#9677
20K → Half2190-188#9677#9865
Half → 25K70496-428#9865#10293
25K → 30K197308-112#10293#10405
30K → 20M74263-189#10405#10594
20M → 21M64195-131#10594#10725
21M → 35K32154-122#10725#10847
35K → 23M71207-136#10847#10983
23M → 24M42217-175#10983#11158
24M → 40K23245-222#11158#11380
40K → 25.2M12168-156#11380#11536
25.2M → Finish26316-290#11536#11826
TOTALS8814232-3354

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