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BOSTON MARATHON 2025

Chia-Hsien Hsu

Bib: 13781•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:26/mi
23:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
46:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:09:04
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:32:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:37:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:56:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:21:58
↑ 181↓ 1480.2%
20M
8:47/mi
2:33:54
↑ 64↓ 500.2%
21M
9:41/mi
2:43:35
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
2:49:57
↑ 17↓ 861.7%
23M
9:11/mi
3:01:27
↑ 23↓ 630.6%
24M
9:28/mi
3:10:55
↓ 821.3%
40K· 24.85 mi
9:54/mi
3:19:23
↓ 200.3%
25.2M
11:16/mi
3:23:16
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
3:32:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:22
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:55:13
Pace8:47 /mi
📊Positive Split: 18.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3523:067:2623:06
7:26
-
10K
6.21 mi11:15:4346:147:2623:08
7:27
+0:01
15K
9.32 mi11:38:331:09:047:2522:50
7:21
-0:06
20K
12.43 mi12:01:411:32:127:2523:08
7:27
+0:06
Half
13.11 mi12:06:511:37:227:265:10
7:34
+0:07
25K
15.53 mi12:25:311:56:027:2818:40
7:42
+0:08
30K
18.64 mi12:51:272:21:587:3725:56
8:21
+0:39
20M
20.00 mi13:03:232:33:547:4211:56
8:47
+0:26
21M
21.00 mi13:13:042:43:357:479:41
9:41
+0:54
35K
21.75 mi13:19:262:49:577:496:22
8:31
-1:10
23M
23.00 mi13:30:563:01:277:5311:30
9:11
+0:40
24M
24.00 mi13:40:243:10:557:579:28
9:28
+0:17
40K
24.85 mi13:48:523:19:238:018:28
9:54
+0:26
25.2M
25.20 mi13:52:453:23:168:043:53
11:16
+1:22
Finish
26.22 mi14:02:043:32:358:079:19
9:09
-2:07

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

8:07 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:02

55% of race

Time at Steady Pace

44:14

21% of race

Time at Slower Pace

52:19

25% of race

Average Pace: 8:06 /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 mi10:52:3523:067:2623:06
7:26
#11656
10K
6.21 mi11:15:4346:147:2623:08
7:27
#11618
15K
9.32 mi11:38:331:09:047:2522:50
7:21
#11157
20K
12.43 mi12:01:411:32:127:2523:08
7:27
#10925
Half
13.11 mi12:06:511:37:227:265:10
7:34
#10992
25K
15.53 mi12:25:311:56:027:2818:40
7:42
#11073
30K
18.64 mi12:51:272:21:587:3725:56
8:21
#11554
20M
20.00 mi13:03:232:33:547:4211:56
8:47
#11860
21M
21.00 mi13:13:042:43:357:479:41
9:41
#12218
35K
21.75 mi13:19:262:49:577:496:22
8:31
#12335
23M
23.00 mi13:30:563:01:277:5311:30
9:11
#12678
24M
24.00 mi13:40:243:10:557:579:28
9:28
#13068
40K
24.85 mi13:48:523:19:238:018:28
9:54
#13417
25.2M
25.20 mi13:52:453:23:168:043:53
11:16
#13630
Finish
26.22 mi14:02:043:32:358:079:19
9:09
#13917
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi116569021902110406(Top 37%)8303(Top 52%)8303(Top 416%)
10K6.21 mi3.10 mi11618+388979+428979+4211593(Top 41%)8953(Top 56%)8953(Top 449%)
15K9.32 mi3.11 mi11157+4618735+2448735+24410406(Top 37%)8303(Top 52%)8303(Top 416%)
20K12.43 mi3.11 mi10925+2328598+1378598+13710301(Top 36%)8175(Top 51%)8175(Top 410%)
Half13.11 mi0.68 mi10992-678628-308628-3012315(Top 43%)9170(Top 57%)9170(Top 459%)
25K15.53 mi2.42 mi11073-818616+128616+1211524(Top 41%)8634(Top 54%)8634(Top 433%)
30K18.64 mi3.11 mi11554-4818767-1518767-15113785(Top 49%)9500(Top 59%)9500(Top 476%)
20M20.00 mi1.36 mi11860-3068876-1098876-10915525(Top 55%)10161(Top 63%)10161(Top 509%)
21M21.00 mi1.00 mi12218-3588997-1218997-12116925(Top 60%)10654(Top 66%)10654(Top 534%)
35K21.75 mi0.75 mi12335-1179023-269023-2615498(Top 55%)9929(Top 62%)9929(Top 497%)
23M23.00 mi1.25 mi12678-3439157-1349157-13417231(Top 61%)10610(Top 66%)10610(Top 532%)
24M24.00 mi1.00 mi13068-3909291-1349291-13419477(Top 69%)11611(Top 72%)11611(Top 582%)
40K24.85 mi0.85 mi13417-3499429-1389429-13820110(Top 71%)11837(Top 73%)11837(Top 593%)
25.2M25.20 mi0.35 mi13630-2139502-739502-7321361(Top 75%)12450(Top 77%)12450(Top 624%)
Finish26.22 mi1.02 mi13917-2879605-1039605-10319680(Top 69%)11656(Top 72%)11656(Top 584%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10406

Males

8303

M50-54

8303

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11593

Males

8953

M50-54

8953

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10406

Males

8303

M50-54

8303

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

10301

Males

8175

M50-54

8175

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12315

Males

9170

M50-54

9170

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11524

Males

8634

M50-54

8634

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13785

Males

9500

M50-54

9500

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15525

Males

10161

M50-54

10161

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

16925

Males

10654

M50-54

10654

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15498

Males

9929

M50-54

9929

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17231

Males

10610

M50-54

10610

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19477

Males

11611

M50-54

11611

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20110

Males

11837

M50-54

11837

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21361

Males

12450

M50-54

12450

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19680

Males

11656

M50-54

11656

Passing Analysis

Category:
Athletes Passed
1557
Passed By
3818
Net Change
-2261
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11656
5K → 10K263225+38#11656#11618
10K → 15K48928+461#11618#11157
15K → 20K29462+232#11157#10925
20K → Half1683-67#10925#10992
Half → 25K151232-81#10992#11073
25K → 30K105586-481#11073#11554
30K → 20M57363-306#11554#11860
20M → 21M42400-358#11860#12218
21M → 35K32149-117#12218#12335
35K → 23M51394-343#12335#12678
23M → 24M15405-390#12678#13068
24M → 40K15364-349#13068#13417
40K → 25.2M7220-213#13417#13630
25.2M → Finish20307-287#13630#13917
TOTALS15573818-2261
📊

Passing Visuals

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