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BOSTON MARATHON 2025

Marcus Oh

Bib: 18293•M

CA

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
25:57
Rank: #19029
Start → 5K
25:57 | 8:21/mi
10K· 6.21 mi
52:41
Rank: #19701 (-672)
5K → 10K
26:44 | 8:36/mi
15K· 9.32 mi
1:20:05
Rank: #20183 (-482)
10K → 15K
27:24 | 8:49/mi
20K· 12.43 mi
1:47:37
Rank: #20186 (-3)
15K → 20K
27:32 | 8:52/mi
Half· 13.11 mi
1:53:30
Rank: #20163 (+23)
20K → Half
5:53 | 8:37/mi
25K· 15.53 mi
2:15:06
Rank: #20042 (+121)
Half → 25K
21:36 | 8:55/mi
30K· 18.64 mi
2:43:54
Rank: #19830 (+212)
25K → 30K
28:48 | 9:16/mi
20M
2:56:37
Rank: #19715 (+115)
30K → 20M
12:43 | 9:21/mi
21M
3:06:48
Rank: #19678 (+37)
20M → 21M
10:11 | 10:11/mi
35K· 21.75 mi
3:13:21
Rank: #19586 (+92)
21M → 35K
6:33 | 8:45/mi
23M
3:25:09
Rank: #19512 (+74)
35K → 23M
11:48 | 9:25/mi
24M
3:34:18
Rank: #19451 (+61)
23M → 24M
9:09 | 9:09/mi
40K· 24.85 mi
3:42:21
Rank: #19394 (+57)
24M → 40K
8:03 | 9:25/mi
25.2M
3:45:57
Rank: #19379 (+15)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:55:21
Rank: #19412 (-33)
25.2M → Finish
9:24 | 9:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:30
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:01:51
Pace9:18 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1525:578:2125:57
8:21
-
10K
6.21 mi11:44:5952:418:2926:44
8:36
+0:15
15K
9.32 mi12:12:231:20:058:3627:24
8:49
+0:13
20K
12.43 mi12:39:551:47:378:4027:32
8:52
+0:03
Half
13.11 mi12:45:481:53:308:395:53
8:37
-0:15
25K
15.53 mi13:07:242:15:068:4221:36
8:55
+0:18
30K
18.64 mi13:36:122:43:548:4828:48
9:16
+0:21
20M
20.00 mi13:48:552:56:378:5012:43
9:21
+0:05
21M
21.00 mi13:59:063:06:488:5410:11
10:11
+0:50
35K
21.75 mi14:05:393:13:218:536:33
8:45
-1:26
23M
23.00 mi14:17:273:25:098:5511:48
9:25
+0:40
24M
24.00 mi14:26:363:34:188:569:09
9:09
-0:16
40K
24.85 mi14:34:393:42:218:578:03
9:25
+0:16
25.2M
25.20 mi14:38:153:45:578:583:36
10:26
+1:01
Finish
26.22 mi14:47:393:55:218:599:24
9:13
-1:13

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

8:21 /mi

Average Pace

8:59 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:03

51% of race

Time at Steady Pace

1:41:31

43% of race

Time at Slower Pace

13:47

6% of race

Average Pace: 8:59 /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 mi11:18:1525:578:2125:57
8:21
#19029
10K
6.21 mi11:44:5952:418:2926:44
8:36
#19701
15K
9.32 mi12:12:231:20:058:3627:24
8:49
#20183
20K
12.43 mi12:39:551:47:378:4027:32
8:52
#20186
Half
13.11 mi12:45:481:53:308:395:53
8:37
#20163
25K
15.53 mi13:07:242:15:068:4221:36
8:55
#20042
30K
18.64 mi13:36:122:43:548:4828:48
9:16
#19830
20M
20.00 mi13:48:552:56:378:5012:43
9:21
#19715
21M
21.00 mi13:59:063:06:488:5410:11
10:11
#19678
35K
21.75 mi14:05:393:13:218:536:33
8:45
#19586
23M
23.00 mi14:17:273:25:098:5511:48
9:25
#19512
24M
24.00 mi14:26:363:34:188:569:09
9:09
#19451
40K
24.85 mi14:34:393:42:218:578:03
9:25
#19394
25.2M
25.20 mi14:38:153:45:578:583:36
10:26
#19379
Finish
26.22 mi14:47:393:55:218:599:24
9:13
#19412
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi19029120471204721101(Top 74%)12985(Top 81%)12985(Top 788%)
10K6.21 mi3.10 mi19701-67212343-29612343-29620372(Top 72%)12639(Top 78%)12639(Top 767%)
15K9.32 mi3.11 mi20183-48212550-20712550-20721101(Top 74%)12985(Top 81%)12985(Top 788%)
20K12.43 mi3.11 mi20186-312547+312547+320271(Top 71%)12582(Top 78%)12582(Top 763%)
Half13.11 mi0.68 mi20163+2312538+912538+919894(Top 70%)12421(Top 77%)12421(Top 754%)
25K15.53 mi2.42 mi20042+12112478+6012478+6019465(Top 69%)12175(Top 76%)12175(Top 739%)
30K18.64 mi3.11 mi19830+21212355+12312355+12318974(Top 67%)11823(Top 73%)11823(Top 717%)
20M20.00 mi1.36 mi19715+11512279+7612279+7618546(Top 65%)11471(Top 71%)11471(Top 696%)
21M21.00 mi1.00 mi19678+3712234+4512234+4518963(Top 67%)11597(Top 72%)11597(Top 704%)
35K21.75 mi0.75 mi19586+9212173+6112173+6117010(Top 60%)10625(Top 66%)10625(Top 645%)
23M23.00 mi1.25 mi19512+7412108+6512108+6518345(Top 65%)11143(Top 69%)11143(Top 676%)
24M24.00 mi1.00 mi19451+6112061+4712061+4718102(Top 64%)10970(Top 68%)10970(Top 666%)
40K24.85 mi0.85 mi19394+5712022+3912022+3918337(Top 65%)10997(Top 68%)10997(Top 667%)
25.2M25.20 mi0.35 mi19379+1512005+1712005+1718757(Top 66%)11201(Top 70%)11201(Top 680%)
Finish26.22 mi1.02 mi19412-3312000+512000+520040(Top 71%)11819(Top 73%)11819(Top 717%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

21101

Males

12985

M55-59

12985

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20372

Males

12639

M55-59

12639

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

21101

Males

12985

M55-59

12985

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20271

Males

12582

M55-59

12582

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19894

Males

12421

M55-59

12421

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19465

Males

12175

M55-59

12175

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

18974

Males

11823

M55-59

11823

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

18546

Males

11471

M55-59

11471

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

18963

Males

11597

M55-59

11597

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17010

Males

10625

M55-59

10625

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18345

Males

11143

M55-59

11143

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18102

Males

10970

M55-59

10970

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18337

Males

10997

M55-59

10997

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18757

Males

11201

M55-59

11201

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

20040

Males

11819

M55-59

11819

Passing Analysis

Category:
Athletes Passed
1705
Passed By
2088
Net Change
-383
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19029
5K → 10K79751-672#19029#19701
10K → 15K82564-482#19701#20183
15K → 20K186189-3#20183#20186
20K → Half4724+23#20186#20163
Half → 25K21392+121#20163#20042
25K → 30K332120+212#20042#19830
30K → 20M15439+115#19830#19715
20M → 21M12386+37#19715#19678
21M → 35K997+92#19678#19586
35K → 23M11844+74#19586#19512
23M → 24M9736+61#19512#19451
24M → 40K8831+57#19451#19394
40K → 25.2M3924+15#19394#19379
25.2M → Finish4881-33#19379#19412
TOTALS17052088-383
📊

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