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BOSTON MARATHON 2025

Chien Hsiang Huang

Bib: 9608•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 38%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:56
Rank: #11135
Start → 5K
22:56 | 7:23/mi
10K· 6.21 mi
45:47
Rank: #10927 (+208)
5K → 10K
22:51 | 7:21/mi
15K· 9.32 mi
1:08:49
Rank: #10904 (+23)
10K → 15K
23:02 | 7:25/mi
20K· 12.43 mi
1:31:47
Rank: #10622 (+282)
15K → 20K
22:58 | 7:24/mi
Half· 13.11 mi
1:36:48
Rank: #10603 (+19)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:54:53
Rank: #10411 (+192)
Half → 25K
18:05 | 7:27/mi
30K· 18.64 mi
2:18:09
Rank: #9797 (+614)
25K → 30K
23:16 | 7:29/mi
20M
2:28:27
Rank: #9571 (+226)
30K → 20M
10:18 | 7:35/mi
21M
2:36:45
Rank: #9511 (+60)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:42:25
Rank: #9476 (+35)
21M → 35K
5:40 | 7:34/mi
23M
2:52:49
Rank: #9617 (-141)
35K → 23M
10:24 | 8:18/mi
24M
3:01:03
Rank: #9757 (-140)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:08:20
Rank: #9884 (-127)
24M → 40K
7:17 | 8:31/mi
25.2M
3:11:36
Rank: #9949 (-65)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:19:54
Rank: #10114 (-165)
25.2M → Finish
8:18 | 8:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:48
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:43:06
Pace7:52 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1222:567:2322:56
7:23
-
10K
6.21 mi11:14:0345:477:2222:51
7:21
-0:02
15K
9.32 mi11:37:051:08:497:2323:02
7:25
+0:04
20K
12.43 mi12:00:031:31:477:2322:58
7:24
-0:01
Half
13.11 mi12:05:041:36:487:235:01
7:21
-0:03
25K
15.53 mi12:23:091:54:537:2418:05
7:27
+0:06
30K
18.64 mi12:46:252:18:097:2523:16
7:29
+0:02
20M
20.00 mi12:56:432:28:277:2510:18
7:35
+0:06
21M
21.00 mi13:05:012:36:457:288:18
8:18
+0:43
35K
21.75 mi13:10:412:42:257:285:40
7:34
-0:44
23M
23.00 mi13:21:052:52:497:3110:24
8:18
+0:44
24M
24.00 mi13:29:193:01:037:338:14
8:14
-0:04
40K
24.85 mi13:36:363:08:207:357:17
8:31
+0:17
25.2M
25.20 mi13:39:523:11:367:363:16
9:28
+0:57
Finish
26.22 mi13:48:103:19:547:388:18
8:09
-1:19

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

7:21 /mi

Average Pace

7:38 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:34:07

77% of race

Time at Slower Pace

45:47

23% of race

Average Pace: 7:37 /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 mi10:51:1222:567:2322:56
7:23
#11135
10K
6.21 mi11:14:0345:477:2222:51
7:21
#10927
15K
9.32 mi11:37:051:08:497:2323:02
7:25
#10904
20K
12.43 mi12:00:031:31:477:2322:58
7:24
#10622
Half
13.11 mi12:05:041:36:487:235:01
7:21
#10603
25K
15.53 mi12:23:091:54:537:2418:05
7:27
#10411
30K
18.64 mi12:46:252:18:097:2523:16
7:29
#9797
20M
20.00 mi12:56:432:28:277:2510:18
7:35
#9571
21M
21.00 mi13:05:012:36:457:288:18
8:18
#9511
35K
21.75 mi13:10:412:42:257:285:40
7:34
#9476
23M
23.00 mi13:21:052:52:497:3110:24
8:18
#9617
24M
24.00 mi13:29:193:01:037:338:14
8:14
#9757
40K
24.85 mi13:36:363:08:207:357:17
8:31
#9884
25.2M
25.20 mi13:39:523:11:367:363:16
9:28
#9949
Finish
26.22 mi13:48:103:19:547:388:18
8:09
#10114
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi111358763876310981(Top 39%)8584(Top 53%)8584(Top 382%)
10K6.21 mi3.10 mi10927+2088628+1358628+13510781(Top 38%)8551(Top 53%)8551(Top 381%)
15K9.32 mi3.11 mi10904+238604+248604+2410981(Top 39%)8584(Top 53%)8584(Top 382%)
20K12.43 mi3.11 mi10622+2828433+1718433+1719835(Top 35%)7919(Top 49%)7919(Top 352%)
Half13.11 mi0.68 mi10603+198425+88425+810430(Top 37%)8243(Top 51%)8243(Top 367%)
25K15.53 mi2.42 mi10411+1928293+1328293+1329600(Top 34%)7651(Top 48%)7651(Top 340%)
30K18.64 mi3.11 mi9797+6147902+3917902+3917677(Top 27%)6396(Top 40%)6396(Top 285%)
20M20.00 mi1.36 mi9571+2267745+1577745+1577546(Top 27%)6175(Top 38%)6175(Top 275%)
21M21.00 mi1.00 mi9511+607681+647681+649208(Top 32%)6938(Top 43%)6938(Top 309%)
35K21.75 mi0.75 mi9476+357649+327649+329143(Top 32%)6933(Top 43%)6933(Top 309%)
23M23.00 mi1.25 mi9617-1417678-297678-2912052(Top 42%)8252(Top 51%)8252(Top 367%)
24M24.00 mi1.00 mi9757-1407708-307708-3012765(Top 45%)8528(Top 53%)8528(Top 380%)
40K24.85 mi0.85 mi9884-1277734-267734-2613510(Top 48%)8754(Top 54%)8754(Top 390%)
25.2M25.20 mi0.35 mi9949-657759-257759-2514356(Top 51%)9085(Top 56%)9085(Top 404%)
Finish26.22 mi1.02 mi10114-1657810-517810-5113865(Top 49%)8934(Top 55%)8934(Top 398%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10981

Males

8584

M40-44

8584

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10781

Males

8551

M40-44

8551

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10981

Males

8584

M40-44

8584

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9835

Males

7919

M40-44

7919

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10430

Males

8243

M40-44

8243

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9600

Males

7651

M40-44

7651

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7677

Males

6396

M40-44

6396

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7546

Males

6175

M40-44

6175

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

9208

Males

6938

M40-44

6938

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

9143

Males

6933

M40-44

6933

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

12052

Males

8252

M40-44

8252

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12765

Males

8528

M40-44

8528

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13510

Males

8754

M40-44

8754

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14356

Males

9085

M40-44

9085

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13865

Males

8934

M40-44

8934

Passing Analysis

Category:
Athletes Passed
2444*
Passed By
1420
Net Change
+1021
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11135
5K → 10K366158+208#11135#10927
10K → 15K187164+23#10927#10904
15K → 20K32644+282#10904#10622
20K → Half4425+19#10622#10603
Half → 25K25563+192#10603#10411
25K → 30K623*9+614#10411#9797
30K → 20M24014+226#9797#9571
20M → 21M12161+60#9571#9511
21M → 35K6833+35#9511#9476
35K → 23M70211-141#9476#9617
23M → 24M54194-140#9617#9757
24M → 40K41167-127#9757#9884
40K → 25.2M1681-65#9884#9949
25.2M → Finish33196-165#9949#10114
TOTALS2444*1420+1021

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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