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BOSTON MARATHON 2025

Cheng Jung Hsieh

Bib: 1579•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 39%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:59
Rank: #3341
Start → 5K
6:26/mi
19:59 split
10K· 6.21 mi
40:01
Rank: #3339 (+2)
5K → 10K
6:27/mi
20:02 split
15K· 9.32 mi
1:00:24
Rank: #3551 (-212)
10K → 15K
6:34/mi
20:23 split
20K· 12.43 mi
1:22:38
Rank: #4545 (-994)
15K → 20K
7:09/mi
22:14 split
Half· 13.11 mi
1:28:00
Rank: #5108 (-563)
20K → Half
7:52/mi
5:22 split
25K· 15.53 mi
1:45:42
Rank: #5755 (-647)
Half → 25K
7:18/mi
17:42 split
30K· 18.64 mi
2:11:08
Rank: #6887 (-1132)
25K → 30K
8:11/mi
25:26 split
20M
2:21:28
Rank: #6858 (+29)
30K → 20M
7:36/mi
10:20 split
21M
2:29:29
Rank: #6806 (+52)
20M → 21M
8:01/mi
8:01 split
35K· 21.75 mi
2:36:01
Rank: #7142 (-336)
21M → 35K
8:44/mi
6:32 split
23M
2:46:23
Rank: #7347 (-205)
35K → 23M
8:17/mi
10:22 split
24M
2:54:10
Rank: #7404 (-57)
23M → 24M
7:47/mi
7:47 split
40K· 24.85 mi
3:00:41
Rank: #7346 (+58)
24M → 40K
7:37/mi
6:31 split
25.2M
3:03:36
Rank: #7355 (-9)
40K → 25.2M
8:27/mi
2:55 split
Finish· 26.22 mi
3:11:29
Rank: #7465 (-110)
25.2M → Finish
7:44/mi
7:53 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:00
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:43:29
Pace7:54 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1219:596:2619:59
6:26
-
10K
6.21 mi10:41:1440:016:2620:02
6:27
+0:01
15K
9.32 mi11:01:371:00:246:2920:23
6:34
+0:07
20K
12.43 mi11:23:511:22:386:3922:14
7:09
+0:35
Half
13.11 mi11:29:131:28:006:435:22
7:52
+0:43
25K
15.53 mi11:46:551:45:426:4817:42
7:18
-0:34
30K
18.64 mi12:12:212:11:087:0225:26
8:11
+0:53
20M
20.00 mi12:22:412:21:287:0410:20
7:36
-0:35
21M
21.00 mi12:30:422:29:297:078:01
8:01
+0:25
35K
21.75 mi12:37:142:36:017:106:32
8:44
+0:43
23M
23.00 mi12:47:362:46:237:1410:22
8:17
-0:27
24M
24.00 mi12:55:232:54:107:157:47
7:47
-0:30
40K
24.85 mi13:01:543:00:417:166:31
7:37
-0:10
25.2M
25.20 mi13:04:493:03:367:172:55
8:27
+0:50
Finish
26.22 mi13:12:423:11:297:197:53
7:44
-0:43

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

6:26 /mi

Average Pace

7:19 /mi

Slowest Pace

8:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:20

52% of race

Time at Steady Pace

45:54

24% of race

Time at Slower Pace

45:15

24% of race

Average Pace: 7:18 /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 mi10:21:1219:596:2619:59
6:26
#3341
10K
6.21 mi10:41:1440:016:2620:02
6:27
#3339
15K
9.32 mi11:01:371:00:246:2920:23
6:34
#3551
20K
12.43 mi11:23:511:22:386:3922:14
7:09
#4545
Half
13.11 mi11:29:131:28:006:435:22
7:52
#5108
25K
15.53 mi11:46:551:45:426:4817:42
7:18
#5755
30K
18.64 mi12:12:212:11:087:0225:26
8:11
#6887
20M
20.00 mi12:22:412:21:287:0410:20
7:36
#6858
21M
21.00 mi12:30:422:29:297:078:01
8:01
#6806
35K
21.75 mi12:37:142:36:017:106:32
8:44
#7142
23M
23.00 mi12:47:362:46:237:1410:22
8:17
#7347
24M
24.00 mi12:55:232:54:107:157:47
7:47
#7404
40K
24.85 mi13:01:543:00:417:166:31
7:37
#7346
25.2M
25.20 mi13:04:493:03:367:172:55
8:27
#7355
Finish
26.22 mi13:12:423:11:297:197:53
7:44
#7465
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3341317331733954(Top 14%)3726(Top 23%)3726(Top 66%)
10K6.21 mi3.10 mi3339+23172+13172+13359(Top 12%)3190(Top 20%)3190(Top 57%)
15K9.32 mi3.11 mi3551-2123366-1943366-1943954(Top 14%)3726(Top 23%)3726(Top 66%)
20K12.43 mi3.11 mi4545-9944256-8904256-8907850(Top 28%)6773(Top 42%)6773(Top 120%)
Half13.11 mi0.68 mi5108-5634740-4844740-48414718(Top 52%)10193(Top 63%)10193(Top 181%)
25K15.53 mi2.42 mi5755-6475273-5335273-5338343(Top 29%)6958(Top 43%)6958(Top 123%)
30K18.64 mi3.11 mi6887-11326122-8496122-84912704(Top 45%)9000(Top 56%)9000(Top 160%)
20M20.00 mi1.36 mi6858+296079+436079+437694(Top 27%)6250(Top 39%)6250(Top 111%)
21M21.00 mi1.00 mi6806+526014+656014+657406(Top 26%)5909(Top 37%)5909(Top 105%)
35K21.75 mi0.75 mi7142-3366231-2176231-21716840(Top 59%)10536(Top 65%)10536(Top 187%)
23M23.00 mi1.25 mi7347-2056321-906321-9011884(Top 42%)8166(Top 51%)8166(Top 145%)
24M24.00 mi1.00 mi7404-576324-36324-39642(Top 34%)6974(Top 43%)6974(Top 124%)
40K24.85 mi0.85 mi7346+586261+636261+637514(Top 26%)5719(Top 36%)5719(Top 101%)
25.2M25.20 mi0.35 mi7355-96251+106251+108458(Top 30%)6143(Top 38%)6143(Top 109%)
Finish26.22 mi1.02 mi7465-1106285-346285-3410925(Top 38%)7464(Top 46%)7464(Top 132%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3954

Males

3726

M18-39

3726

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3359

Males

3190

M18-39

3190

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3954

Males

3726

M18-39

3726

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7850

Males

6773

M18-39

6773

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14718

Males

10193

M18-39

10193

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8343

Males

6958

M18-39

6958

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12704

Males

9000

M18-39

9000

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7694

Males

6250

M18-39

6250

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7406

Males

5909

M18-39

5909

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16840

Males

10536

M18-39

10536

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11884

Males

8166

M18-39

8166

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9642

Males

6974

M18-39

6974

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7514

Males

5719

M18-39

5719

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8458

Males

6143

M18-39

6143

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10925

Males

7464

M18-39

7464

Passing Analysis

Category:
Athletes Passed
697
Passed By
4821
Net Change
-4124
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3341
5K → 10K130128+2#3341#3339
10K → 15K37249-212#3339#3551
15K → 20K81002-994#3551#4545
20K → Half0563-563#4545#5108
Half → 25K20667-647#5108#5755
25K → 30K281160-1132#5755#6887
30K → 20M10677+29#6887#6858
20M → 21M11058+52#6858#6806
21M → 35K11347-336#6806#7142
35K → 23M42247-205#7142#7347
23M → 24M53110-57#7347#7404
24M → 40K9537+58#7404#7346
40K → 25.2M2635-9#7346#7355
25.2M → Finish31141-110#7355#7465
TOTALS6974821-4124
📊

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