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BOSTON MARATHON 2025

Hsu Min Chen

Bib: 16567•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:33
Rank: #20163
Start → 5K
26:33 | 8:33/mi
10K· 6.21 mi
53:40
Rank: #20585 (-422)
5K → 10K
27:07 | 8:44/mi
15K· 9.32 mi
1:21:15
Rank: #20840 (-255)
10K → 15K
27:35 | 8:53/mi
20K· 12.43 mi
1:48:48
Rank: #20701 (+139)
15K → 20K
27:33 | 8:52/mi
Half· 13.11 mi
1:54:38
Rank: #20648 (+53)
20K → Half
5:50 | 8:33/mi
25K· 15.53 mi
2:16:07
Rank: #20421 (+227)
Half → 25K
21:29 | 8:52/mi
30K· 18.64 mi
2:46:10
Rank: #20442 (-21)
25K → 30K
30:03 | 9:40/mi
20M
3:00:48
Rank: #20758 (-316)
30K → 20M
14:38 | 10:46/mi
21M
3:13:28
Rank: #21187 (-429)
20M → 21M
12:40 | 12:40/mi
35K· 21.75 mi
3:21:10
Rank: #21250 (-63)
21M → 35K
7:42 | 10:18/mi
23M
3:34:46
Rank: #21379 (-129)
35K → 23M
13:36 | 10:52/mi
24M
3:45:35
Rank: #21510 (-131)
23M → 24M
10:49 | 10:49/mi
40K· 24.85 mi
3:55:40
Rank: #21687 (-177)
24M → 40K
10:05 | 11:48/mi
25.2M
3:59:43
Rank: #21700 (-13)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
4:10:02
Rank: #21746 (-46)
25.2M → Finish
10:19 | 10:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:38
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:15:24
Pace10:20 /mi
📊Positive Split: 18.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:36:5926:338:3326:33
8:33
-
10K
6.21 mi11:04:0653:408:3827:07
8:44
+0:11
15K
9.32 mi11:31:411:21:158:4327:35
8:53
+0:09
20K
12.43 mi11:59:141:48:488:4527:33
8:52
-0:01
Half
13.11 mi12:05:041:54:388:455:50
8:33
-0:19
25K
15.53 mi12:26:332:16:078:4621:29
8:52
+0:19
30K
18.64 mi12:56:362:46:108:5530:03
9:40
+0:48
20M
20.00 mi13:11:143:00:489:0214:38
10:46
+1:06
21M
21.00 mi13:23:543:13:289:1312:40
12:40
+1:54
35K
21.75 mi13:31:363:21:109:157:42
10:18
-2:22
23M
23.00 mi13:45:123:34:469:2013:36
10:52
+0:34
24M
24.00 mi13:56:013:45:359:2410:49
10:49
-0:03
40K
24.85 mi14:06:063:55:409:2910:05
11:48
+0:59
25.2M
25.20 mi14:10:093:59:439:314:03
11:45
-0:03
Finish
26.22 mi14:20:284:10:029:3310:19
10:07
-1:38

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

9:33 /mi

Slowest Pace

12:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:07

54% of race

Time at Steady Pace

48:04

19% of race

Time at Slower Pace

1:05:51

26% of race

Average Pace: 9:32 /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 mi10:36:5926:338:3326:33
8:33
#20163
10K
6.21 mi11:04:0653:408:3827:07
8:44
#20585
15K
9.32 mi11:31:411:21:158:4327:35
8:53
#20840
20K
12.43 mi11:59:141:48:488:4527:33
8:52
#20701
Half
13.11 mi12:05:041:54:388:455:50
8:33
#20648
25K
15.53 mi12:26:332:16:078:4621:29
8:52
#20421
30K
18.64 mi12:56:362:46:108:5530:03
9:40
#20442
20M
20.00 mi13:11:143:00:489:0214:38
10:46
#20758
21M
21.00 mi13:23:543:13:289:1312:40
12:40
#21187
35K
21.75 mi13:31:363:21:109:157:42
10:18
#21250
23M
23.00 mi13:45:123:34:469:2013:36
10:52
#21379
24M
24.00 mi13:56:013:45:359:2410:49
10:49
#21510
40K
24.85 mi14:06:063:55:409:2910:05
11:48
#21687
25.2M
25.20 mi14:10:093:59:439:314:03
11:45
#21700
Finish
26.22 mi14:20:284:10:029:3310:19
10:07
#21746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20163125101251021441(Top 75%)13140(Top 82%)13140(Top 551%)
10K6.21 mi3.10 mi20585-42212711-20112711-20121034(Top 74%)12941(Top 80%)12941(Top 542%)
15K9.32 mi3.11 mi20840-25512831-12012831-12021441(Top 75%)13140(Top 82%)13140(Top 551%)
20K12.43 mi3.11 mi20701+13912773+5812773+5820309(Top 72%)12601(Top 78%)12601(Top 528%)
Half13.11 mi0.68 mi20648+5312748+2512748+2519518(Top 69%)12282(Top 76%)12282(Top 515%)
25K15.53 mi2.42 mi20421+22712641+10712641+10719236(Top 68%)12080(Top 75%)12080(Top 506%)
30K18.64 mi3.11 mi20442-2112601+4012601+4020609(Top 73%)12563(Top 78%)12563(Top 527%)
20M20.00 mi1.36 mi20758-31612730-12912730-12923099(Top 81%)13571(Top 84%)13571(Top 569%)
21M21.00 mi1.00 mi21187-42912906-17612906-17624613(Top 87%)14192(Top 88%)14192(Top 595%)
35K21.75 mi0.75 mi21250-6312929-2312929-2322655(Top 80%)13229(Top 82%)13229(Top 554%)
23M23.00 mi1.25 mi21379-12912956-2712956-2722894(Top 81%)13290(Top 83%)13290(Top 557%)
24M24.00 mi1.00 mi21510-13112999-4312999-4323588(Top 83%)13610(Top 85%)13610(Top 570%)
40K24.85 mi0.85 mi21687-17713039-4013039-4024621(Top 87%)14071(Top 87%)14071(Top 590%)
25.2M25.20 mi0.35 mi21700-1313035+413035+422651(Top 80%)13106(Top 81%)13106(Top 549%)
Finish26.22 mi1.02 mi21746-4613048-1313048-1323287(Top 82%)13414(Top 83%)13414(Top 562%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21441

Males

13140

M45-49

13140

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21034

Males

12941

M45-49

12941

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21441

Males

13140

M45-49

13140

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20309

Males

12601

M45-49

12601

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19518

Males

12282

M45-49

12282

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19236

Males

12080

M45-49

12080

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20609

Males

12563

M45-49

12563

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

23099

Males

13571

M45-49

13571

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24613

Males

14192

M45-49

14192

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22655

Males

13229

M45-49

13229

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

22894

Males

13290

M45-49

13290

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

23588

Males

13610

M45-49

13610

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24621

Males

14071

M45-49

14071

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22651

Males

13106

M45-49

13106

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23287

Males

13414

M45-49

13414

Passing Analysis

Category:
Athletes Passed
1300
Passed By
2883
Net Change
-1583
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20163
5K → 10K126548-422#20163#20585
10K → 15K117372-255#20585#20840
15K → 20K251112+139#20840#20701
20K → Half629+53#20701#20648
Half → 25K26538+227#20648#20421
25K → 30K232253-21#20421#20442
30K → 20M37353-316#20442#20758
20M → 21M22451-429#20758#21187
21M → 35K41104-63#21187#21250
35K → 23M56185-129#21250#21379
23M → 24M25156-131#21379#21510
24M → 40K17194-177#21510#21687
40K → 25.2M2134-13#21687#21700
25.2M → Finish2874-46#21700#21746
TOTALS13002883-1583
📊

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