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BOSTON MARATHON 2025

Christopher Marcus

Bib: 25938•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
27:03
Rank: #21038
Start → 5K
27:03 | 8:42/mi
10K· 6.21 mi
53:59
Rank: #20853 (+185)
5K → 10K
26:56 | 8:40/mi
15K· 9.32 mi
1:20:41
Rank: #20514 (+339)
10K → 15K
26:42 | 8:36/mi
20K· 12.43 mi
1:47:49
Rank: #20275 (+239)
15K → 20K
27:08 | 8:44/mi
Half· 13.11 mi
1:53:38
Rank: #20229 (+46)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:15:10
Rank: #20066 (+163)
Half → 25K
21:32 | 8:53/mi
30K· 18.64 mi
2:43:17
Rank: #19640 (+426)
25K → 30K
28:07 | 9:03/mi
20M
2:55:23
Rank: #19396 (+244)
30K → 20M
12:06 | 8:54/mi
21M
3:04:38
Rank: #19132 (+264)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
3:11:09
Rank: #19044 (+88)
21M → 35K
6:31 | 8:43/mi
23M
3:22:27
Rank: #18882 (+162)
35K → 23M
11:18 | 9:02/mi
24M
3:31:34
Rank: #18851 (+31)
23M → 24M
9:07 | 9:07/mi
40K· 24.85 mi
3:39:17
Rank: #18760 (+91)
24M → 40K
7:43 | 9:02/mi
25.2M
3:42:40
Rank: #18703 (+57)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:51:28
Rank: #18635 (+68)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:38
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time1:57:50
Pace8:59 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:2927:038:4227:03
8:42
-
10K
6.21 mi12:09:2553:598:4126:56
8:40
-0:02
15K
9.32 mi12:36:071:20:418:3926:42
8:36
-0:04
20K
12.43 mi13:03:151:47:498:4127:08
8:44
+0:08
Half
13.11 mi13:09:041:53:388:405:49
8:32
-0:12
25K
15.53 mi13:30:362:15:108:4221:32
8:53
+0:21
30K
18.64 mi13:58:432:43:178:4628:07
9:03
+0:10
20M
20.00 mi14:10:492:55:238:4612:06
8:54
-0:09
21M
21.00 mi14:20:043:04:388:489:15
9:15
+0:21
35K
21.75 mi14:26:353:11:098:476:31
8:43
-0:32
23M
23.00 mi14:37:533:22:278:4811:18
9:02
+0:19
24M
24.00 mi14:47:003:31:348:499:07
9:07
+0:05
40K
24.85 mi14:54:433:39:178:497:43
9:02
-0:05
25.2M
25.20 mi14:58:063:42:408:503:23
9:49
+0:47
Finish
26.22 mi15:06:543:51:288:508:48
8:38
-1:11

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

8:32 /mi

Average Pace

8:50 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:48:05

99% of race

Time at Steady Pace

3:23

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:50 /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 mi11:42:2927:038:4227:03
8:42
#21038
10K
6.21 mi12:09:2553:598:4126:56
8:40
#20853
15K
9.32 mi12:36:071:20:418:3926:42
8:36
#20514
20K
12.43 mi13:03:151:47:498:4127:08
8:44
#20275
Half
13.11 mi13:09:041:53:388:405:49
8:32
#20229
25K
15.53 mi13:30:362:15:108:4221:32
8:53
#20066
30K
18.64 mi13:58:432:43:178:4628:07
9:03
#19640
20M
20.00 mi14:10:492:55:238:4612:06
8:54
#19396
21M
21.00 mi14:20:043:04:388:489:15
9:15
#19132
35K
21.75 mi14:26:353:11:098:476:31
8:43
#19044
23M
23.00 mi14:37:533:22:278:4811:18
9:02
#18882
24M
24.00 mi14:47:003:31:348:499:07
9:07
#18851
40K
24.85 mi14:54:433:39:178:497:43
9:02
#18760
25.2M
25.20 mi14:58:063:42:408:503:23
9:49
#18703
Finish
26.22 mi15:06:543:51:288:508:48
8:38
#18635
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21038128731287319883(Top 70%)12447(Top 77%)12447(Top 221%)
10K6.21 mi3.10 mi20853+18512825+4812825+4820699(Top 73%)12780(Top 79%)12780(Top 227%)
15K9.32 mi3.11 mi20514+33912698+12712698+12719883(Top 70%)12447(Top 77%)12447(Top 221%)
20K12.43 mi3.11 mi20275+23912585+11312585+11319576(Top 69%)12270(Top 76%)12270(Top 217%)
Half13.11 mi0.68 mi20229+4612557+2812557+2819322(Top 68%)12176(Top 76%)12176(Top 216%)
25K15.53 mi2.42 mi20066+16312487+7012487+7019332(Top 68%)12116(Top 75%)12116(Top 215%)
30K18.64 mi3.11 mi19640+42612264+22312264+22317932(Top 63%)11341(Top 70%)11341(Top 201%)
20M20.00 mi1.36 mi19396+24412136+12812136+12816258(Top 57%)10475(Top 65%)10475(Top 186%)
21M21.00 mi1.00 mi19132+26412006+13012006+13014887(Top 52%)9742(Top 60%)9742(Top 173%)
35K21.75 mi0.75 mi19044+8811944+6211944+6216747(Top 59%)10521(Top 65%)10521(Top 186%)
23M23.00 mi1.25 mi18882+16211845+9911845+9916409(Top 58%)10251(Top 64%)10251(Top 182%)
24M24.00 mi1.00 mi18851+3111813+3211813+3217958(Top 63%)10904(Top 68%)10904(Top 193%)
40K24.85 mi0.85 mi18760+9111740+7311740+7316441(Top 58%)10124(Top 63%)10124(Top 179%)
25.2M25.20 mi0.35 mi18703+5711703+3711703+3716127(Top 57%)9952(Top 62%)9952(Top 176%)
Finish26.22 mi1.02 mi18635+6811662+4111662+4117063(Top 60%)10428(Top 65%)10428(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19883

Males

12447

M18-39

12447

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20699

Males

12780

M18-39

12780

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19883

Males

12447

M18-39

12447

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19576

Males

12270

M18-39

12270

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19322

Males

12176

M18-39

12176

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19332

Males

12116

M18-39

12116

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17932

Males

11341

M18-39

11341

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16258

Males

10475

M18-39

10475

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14887

Males

9742

M18-39

9742

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16747

Males

10521

M18-39

10521

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16409

Males

10251

M18-39

10251

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

17958

Males

10904

M18-39

10904

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16441

Males

10124

M18-39

10124

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16127

Males

9952

M18-39

9952

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17063

Males

10428

M18-39

10428

Passing Analysis

Category:
Athletes Passed
3031
Passed By
628
Net Change
+2403
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21038
5K → 10K388203+185#21038#20853
10K → 15K40667+339#20853#20514
15K → 20K31071+239#20514#20275
20K → Half537+46#20275#20229
Half → 25K24380+163#20229#20066
25K → 30K47145+426#20066#19640
30K → 20M25612+244#19640#19396
20M → 21M2684+264#19396#19132
21M → 35K10517+88#19132#19044
35K → 23M17917+162#19044#18882
23M → 24M8049+31#18882#18851
24M → 40K11423+91#18851#18760
40K → 25.2M6710+57#18760#18703
25.2M → Finish9123+68#18703#18635
TOTALS3031628+2403
📊

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