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BOSTON MARATHON 2025

Jun Chea

Bib: 18283•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:31
Rank: #15587
Start → 5K
24:31 | 7:53/mi
10K· 6.21 mi
49:07
Rank: #15718 (-131)
5K → 10K
24:36 | 7:55/mi
15K· 9.32 mi
1:13:43
Rank: #15571 (+147)
10K → 15K
24:36 | 7:55/mi
20K· 12.43 mi
1:38:39
Rank: #15434 (+137)
15K → 20K
24:56 | 8:02/mi
Half· 13.11 mi
1:44:08
Rank: #15477 (-43)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:04:36
Rank: #15719 (-242)
Half → 25K
20:28 | 8:26/mi
30K· 18.64 mi
2:32:32
Rank: #16108 (-389)
25K → 30K
27:56 | 8:59/mi
20M
2:44:59
Rank: #16195 (-87)
30K → 20M
12:27 | 9:10/mi
21M
2:54:39
Rank: #16193 (+2)
20M → 21M
9:40 | 9:40/mi
35K· 21.75 mi
3:01:02
Rank: #16131 (+62)
21M → 35K
6:23 | 8:32/mi
23M
3:11:51
Rank: #15962 (+169)
35K → 23M
10:49 | 8:38/mi
24M
3:20:22
Rank: #15895 (+67)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:28:02
Rank: #15873 (+22)
24M → 40K
7:40 | 8:58/mi
25.2M
3:31:26
Rank: #15872 (+1)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:39:54
Rank: #15833 (+39)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:08
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:55:46
Pace8:50 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0824:317:5324:31
7:53
-
10K
6.21 mi11:39:4449:077:5424:36
7:55
+0:02
15K
9.32 mi12:04:201:13:437:5524:36
7:55
0:00
20K
12.43 mi12:29:161:38:397:5624:56
8:02
+0:07
Half
13.11 mi12:34:451:44:087:575:29
8:02
0:00
25K
15.53 mi12:55:132:04:368:0120:28
8:26
+0:24
30K
18.64 mi13:23:092:32:328:1127:56
8:59
+0:33
20M
20.00 mi13:35:362:44:598:1512:27
9:10
+0:11
21M
21.00 mi13:45:162:54:398:199:40
9:40
+0:30
35K
21.75 mi13:51:393:01:028:196:23
8:32
-1:08
23M
23.00 mi14:02:283:11:518:2010:49
8:38
+0:06
24M
24.00 mi14:10:593:20:228:218:31
8:31
-0:07
40K
24.85 mi14:18:393:28:028:227:40
8:58
+0:27
25.2M
25.20 mi14:22:033:31:268:233:24
9:52
+0:54
Finish
26.22 mi14:30:313:39:548:248:28
8:19
-1:33

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

7:53 /mi

Average Pace

8:24 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:08

47% of race

Time at Steady Pace

54:39

25% of race

Time at Slower Pace

1:01:07

28% of race

Average Pace: 8:23 /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 mi11:15:0824:317:5324:31
7:53
#15587
10K
6.21 mi11:39:4449:077:5424:36
7:55
#15718
15K
9.32 mi12:04:201:13:437:5524:36
7:55
#15571
20K
12.43 mi12:29:161:38:397:5624:56
8:02
#15434
Half
13.11 mi12:34:451:44:087:575:29
8:02
#15477
25K
15.53 mi12:55:132:04:368:0120:28
8:26
#15719
30K
18.64 mi13:23:092:32:328:1127:56
8:59
#16108
20M
20.00 mi13:35:362:44:598:1512:27
9:10
#16195
21M
21.00 mi13:45:162:54:398:199:40
9:40
#16193
35K
21.75 mi13:51:393:01:028:196:23
8:32
#16131
23M
23.00 mi14:02:283:11:518:2010:49
8:38
#15962
24M
24.00 mi14:10:593:20:228:218:31
8:31
#15895
40K
24.85 mi14:18:393:28:028:227:40
8:58
#15873
25.2M
25.20 mi14:22:033:31:268:233:24
9:52
#15872
Finish
26.22 mi14:30:313:39:548:248:28
8:19
#15833
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15587106551065515369(Top 54%)10534(Top 65%)10534(Top 639%)
10K6.21 mi3.10 mi15718-13110703-4810703-4815790(Top 56%)10734(Top 67%)10734(Top 651%)
15K9.32 mi3.11 mi15571+14710643+6010643+6015369(Top 54%)10534(Top 65%)10534(Top 639%)
20K12.43 mi3.11 mi15434+13710566+7710566+7715112(Top 53%)10367(Top 64%)10367(Top 629%)
Half13.11 mi0.68 mi15477-4310584-1810584-1816146(Top 57%)10819(Top 67%)10819(Top 656%)
25K15.53 mi2.42 mi15719-24210667-8310667-8316805(Top 59%)11015(Top 68%)11015(Top 668%)
30K18.64 mi3.11 mi16108-38910771-10410771-10417637(Top 62%)11207(Top 70%)11207(Top 680%)
20M20.00 mi1.36 mi16195-8710768+310768+317578(Top 62%)11065(Top 69%)11065(Top 671%)
21M21.00 mi1.00 mi16193+210742+2610742+2616846(Top 59%)10620(Top 66%)10620(Top 644%)
35K21.75 mi0.75 mi16131+6210684+5810684+5815646(Top 55%)10014(Top 62%)10014(Top 608%)
23M23.00 mi1.25 mi15962+16910569+11510569+11514170(Top 50%)9249(Top 57%)9249(Top 561%)
24M24.00 mi1.00 mi15895+6710534+3510534+3514597(Top 51%)9410(Top 58%)9410(Top 571%)
40K24.85 mi0.85 mi15873+2210502+3210502+3216088(Top 57%)9961(Top 62%)9961(Top 604%)
25.2M25.20 mi0.35 mi15872+110483+1910483+1916334(Top 58%)10044(Top 62%)10044(Top 609%)
Finish26.22 mi1.02 mi15833+3910441+4210441+4214948(Top 53%)9458(Top 59%)9458(Top 574%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

15369

Males

10534

M55-59

10534

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15790

Males

10734

M55-59

10734

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

15369

Males

10534

M55-59

10534

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

15112

Males

10367

M55-59

10367

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

16146

Males

10819

M55-59

10819

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16805

Males

11015

M55-59

11015

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17637

Males

11207

M55-59

11207

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17578

Males

11065

M55-59

11065

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

16846

Males

10620

M55-59

10620

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15646

Males

10014

M55-59

10014

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

14170

Males

9249

M55-59

9249

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

14597

Males

9410

M55-59

9410

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16088

Males

9961

M55-59

9961

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16334

Males

10044

M55-59

10044

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14948

Males

9458

M55-59

9458

Passing Analysis

Category:
Athletes Passed
1848
Passed By
2094
Net Change
-246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15587
5K → 10K260391-131#15587#15718
10K → 15K279132+147#15718#15571
15K → 20K268131+137#15571#15434
20K → Half2568-43#15434#15477
Half → 25K110352-242#15477#15719
25K → 30K124513-389#15719#16108
30K → 20M88175-87#16108#16195
20M → 21M102100+2#16195#16193
21M → 35K9533+62#16193#16131
35K → 23M19526+169#16131#15962
23M → 24M10134+67#15962#15895
24M → 40K7856+22#15895#15873
40K → 25.2M3635+1#15873#15872
25.2M → Finish8748+39#15872#15833
TOTALS18482094-246
📊

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