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BOSTON MARATHON 2025

Chihung Hsu

Bib: 10649•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:27
Rank: #15414
Start → 5K
24:27 | 7:52/mi
10K· 6.21 mi
49:04
Rank: #15637 (-223)
5K → 10K
24:37 | 7:55/mi
15K· 9.32 mi
1:13:20
Rank: #15222 (+415)
10K → 15K
24:16 | 7:49/mi
20K· 12.43 mi
1:38:33
Rank: #15365 (-143)
15K → 20K
25:13 | 8:07/mi
Half· 13.11 mi
1:44:05
Rank: #15440 (-75)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:04:51
Rank: #15863 (-423)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:34:14
Rank: #16681 (-818)
25K → 30K
29:23 | 9:27/mi
20M
2:46:50
Rank: #16772 (-91)
30K → 20M
12:36 | 9:16/mi
21M
2:56:54
Rank: #16857 (-85)
20M → 21M
10:04 | 10:04/mi
35K· 21.75 mi
3:03:27
Rank: #16839 (+18)
21M → 35K
6:33 | 8:45/mi
23M
3:14:56
Rank: #16850 (-11)
35K → 23M
11:29 | 9:10/mi
24M
3:23:43
Rank: #16814 (+36)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:31:25
Rank: #16781 (+33)
24M → 40K
7:42 | 9:00/mi
25.2M
3:34:59
Rank: #16806 (-25)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
3:44:05
Rank: #16925 (-119)
25.2M → Finish
9:06 | 8:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:05
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time2:00:00
Pace9:09 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5824:277:5224:27
7:52
-
10K
6.21 mi11:19:3549:047:5424:37
7:55
+0:03
15K
9.32 mi11:43:511:13:207:5224:16
7:49
-0:06
20K
12.43 mi12:09:041:38:337:5625:13
8:07
+0:18
Half
13.11 mi12:14:361:44:057:565:32
8:07
0:00
25K
15.53 mi12:35:222:04:518:0220:46
8:34
+0:27
30K
18.64 mi13:04:452:34:148:1629:23
9:27
+0:53
20M
20.00 mi13:17:212:46:508:2012:36
9:16
-0:11
21M
21.00 mi13:27:252:56:548:2510:04
10:04
+0:48
35K
21.75 mi13:33:583:03:278:266:33
8:45
-1:19
23M
23.00 mi13:45:273:14:568:2911:29
9:10
+0:25
24M
24.00 mi13:54:143:23:438:298:47
8:47
-0:23
40K
24.85 mi14:01:563:31:258:307:42
9:00
+0:13
25.2M
25.20 mi14:05:303:34:598:323:34
10:21
+1:21
Finish
26.22 mi14:14:363:44:058:339:06
8:56
-1:25

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

7:49 /mi

Average Pace

8:33 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:05

46% of race

Time at Steady Pace

52:54

24% of race

Time at Slower Pace

1:07:06

30% of race

Average Pace: 8:33 /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 mi10:54:5824:277:5224:27
7:52
#15414
10K
6.21 mi11:19:3549:047:5424:37
7:55
#15637
15K
9.32 mi11:43:511:13:207:5224:16
7:49
#15222
20K
12.43 mi12:09:041:38:337:5625:13
8:07
#15365
Half
13.11 mi12:14:361:44:057:565:32
8:07
#15440
25K
15.53 mi12:35:222:04:518:0220:46
8:34
#15863
30K
18.64 mi13:04:452:34:148:1629:23
9:27
#16681
20M
20.00 mi13:17:212:46:508:2012:36
9:16
#16772
21M
21.00 mi13:27:252:56:548:2510:04
10:04
#16857
35K
21.75 mi13:33:583:03:278:266:33
8:45
#16839
23M
23.00 mi13:45:273:14:568:2911:29
9:10
#16850
24M
24.00 mi13:54:143:23:438:298:47
8:47
#16814
40K
24.85 mi14:01:563:31:258:307:42
9:00
#16781
25.2M
25.20 mi14:05:303:34:598:323:34
10:21
#16806
Finish
26.22 mi14:14:363:44:058:339:06
8:56
#16925
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15414105861058614458(Top 51%)10133(Top 63%)10133(Top 508%)
10K6.21 mi3.10 mi15637-22310676-9010676-9015837(Top 56%)10761(Top 67%)10761(Top 539%)
15K9.32 mi3.11 mi15222+41510492+18410492+18414458(Top 51%)10133(Top 63%)10133(Top 508%)
20K12.43 mi3.11 mi15365-14310531-3910531-3915728(Top 55%)10631(Top 66%)10631(Top 533%)
Half13.11 mi0.68 mi15440-7510562-3110562-3116777(Top 59%)11076(Top 69%)11076(Top 555%)
25K15.53 mi2.42 mi15863-42310727-16510727-16517563(Top 62%)11341(Top 70%)11341(Top 568%)
30K18.64 mi3.11 mi16681-81811008-28111008-28119766(Top 70%)12181(Top 76%)12181(Top 610%)
20M20.00 mi1.36 mi16772-9111021-1311021-1318137(Top 64%)11292(Top 70%)11292(Top 566%)
21M21.00 mi1.00 mi16857-8511022-111022-118547(Top 65%)11410(Top 71%)11410(Top 572%)
35K21.75 mi0.75 mi16839+1810995+2710995+2716992(Top 60%)10607(Top 66%)10607(Top 531%)
23M23.00 mi1.25 mi16850-1110961+3410961+3417189(Top 61%)10594(Top 66%)10594(Top 531%)
24M24.00 mi1.00 mi16814+3610921+4010921+4016205(Top 57%)10120(Top 63%)10120(Top 507%)
40K24.85 mi0.85 mi16781+3310874+4710874+4716311(Top 57%)10060(Top 62%)10060(Top 504%)
25.2M25.20 mi0.35 mi16806-2510864+1010864+1018407(Top 65%)11015(Top 68%)11015(Top 552%)
Finish26.22 mi1.02 mi16925-11910905-4110905-4118659(Top 66%)11203(Top 70%)11203(Top 561%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

14458

Males

10133

M50-54

10133

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15837

Males

10761

M50-54

10761

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

14458

Males

10133

M50-54

10133

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15728

Males

10631

M50-54

10631

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16777

Males

11076

M50-54

11076

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17563

Males

11341

M50-54

11341

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19766

Males

12181

M50-54

12181

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

18137

Males

11292

M50-54

11292

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18547

Males

11410

M50-54

11410

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

16992

Males

10607

M50-54

10607

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17189

Males

10594

M50-54

10594

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16205

Males

10120

M50-54

10120

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16311

Males

10060

M50-54

10060

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18407

Males

11015

M50-54

11015

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

18659

Males

11203

M50-54

11203

Passing Analysis

Category:
Athletes Passed
1594
Passed By
3105
Net Change
-1511
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15414
5K → 10K226449-223#15414#15637
10K → 15K45237+415#15637#15222
15K → 20K154297-143#15222#15365
20K → Half1893-75#15365#15440
Half → 25K87510-423#15440#15863
25K → 30K63881-818#15863#16681
30K → 20M76167-91#16681#16772
20M → 21M89174-85#16772#16857
21M → 35K7052+18#16857#16839
35K → 23M106117-11#16839#16850
23M → 24M9155+36#16850#16814
24M → 40K10067+33#16814#16781
40K → 25.2M2550-25#16781#16806
25.2M → Finish37156-119#16806#16925
TOTALS15943105-1511
📊

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