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BOSTON MARATHON 2025

Christopher Mershon

Bib: 5148•M

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 4%
Division (M18-39)
#0 / 5642
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:15
Rank: #1824
Start → 5K
19:15 | 6:12/mi
10K· 6.21 mi
38:13
Rank: #1630 (+194)
5K → 10K
18:58 | 6:06/mi
15K· 9.32 mi
56:53
Rank: #1408 (+222)
10K → 15K
18:40 | 6:00/mi
20K· 12.43 mi
1:15:40
Rank: #1276 (+132)
15K → 20K
18:47 | 6:03/mi
Half· 13.11 mi
1:19:40
Rank: #1232 (+44)
20K → Half
4:00 | 5:52/mi
25K· 15.53 mi
1:34:13
Rank: #1144 (+88)
Half → 25K
14:33 | 6:00/mi
30K· 18.64 mi
1:53:08
Rank: #1027 (+117)
25K → 30K
18:55 | 6:05/mi
20M
2:01:34
Rank: #974 (+53)
30K → 20M
8:26 | 6:12/mi
21M
2:08:03
Rank: #937 (+37)
20M → 21M
6:29 | 6:29/mi
35K· 21.75 mi
2:12:23
Rank: #882 (+55)
21M → 35K
4:20 | 5:48/mi
23M
2:19:58
Rank: #834 (+48)
35K → 23M
7:35 | 6:03/mi
24M
2:25:46
Rank: #788 (+46)
23M → 24M
5:48 | 5:48/mi
40K· 24.85 mi
2:30:48
Rank: #741 (+47)
24M → 40K
5:02 | 5:53/mi
25.2M
2:33:06
Rank: #736 (+5)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:38:54
Rank: #705 (+31)
25.2M → Finish
5:48 | 5:41/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:19:40
Pace6:05 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:19:14
Pace6:03 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3919:156:1219:15
6:12
-
10K
6.21 mi10:41:3738:136:0918:58
6:06
-0:06
15K
9.32 mi11:00:1756:536:0618:40
6:00
-0:06
20K
12.43 mi11:19:041:15:406:0518:47
6:03
+0:03
Half
13.11 mi11:23:041:19:406:054:00
5:52
-0:11
25K
15.53 mi11:37:371:34:136:0414:33
6:00
+0:08
30K
18.64 mi11:56:321:53:086:0418:55
6:05
+0:05
20M
20.00 mi12:04:582:01:346:058:26
6:12
+0:07
21M
21.00 mi12:11:272:08:036:066:29
6:29
+0:17
35K
21.75 mi12:15:472:12:236:054:20
5:48
-0:41
23M
23.00 mi12:23:222:19:586:057:35
6:03
+0:15
24M
24.00 mi12:29:102:25:466:045:48
5:48
-0:15
40K
24.85 mi12:34:122:30:486:045:02
5:53
+0:05
25.2M
25.20 mi12:36:302:33:066:052:18
6:40
+0:47
Finish
26.22 mi12:42:182:38:546:045:48
5:41
-0:59

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

5:41 /mi

Average Pace

6:04 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:07

94% of race

Time at Steady Pace

8:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:04 /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 mi10:22:3919:156:1219:15
6:12
#1824
10K
6.21 mi10:41:3738:136:0918:58
6:06
#1630
15K
9.32 mi11:00:1756:536:0618:40
6:00
#1408
20K
12.43 mi11:19:041:15:406:0518:47
6:03
#1276
Half
13.11 mi11:23:041:19:406:054:00
5:52
#1232
25K
15.53 mi11:37:371:34:136:0414:33
6:00
#1144
30K
18.64 mi11:56:321:53:086:0418:55
6:05
#1027
20M
20.00 mi12:04:582:01:346:058:26
6:12
#974
21M
21.00 mi12:11:272:08:036:066:29
6:29
#937
35K
21.75 mi12:15:472:12:236:054:20
5:48
#882
23M
23.00 mi12:23:222:19:586:057:35
6:03
#834
24M
24.00 mi12:29:102:25:466:045:48
5:48
#788
40K
24.85 mi12:34:122:30:486:045:02
5:53
#741
25.2M
25.20 mi12:36:302:33:066:052:18
6:40
#736
Finish
26.22 mi12:42:182:38:546:045:48
5:41
#705
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1824173217321053(Top 4%)995(Top 6%)995(Top 18%)
10K6.21 mi3.10 mi1630+1941551+1811551+1811475(Top 5%)1400(Top 9%)1400(Top 25%)
15K9.32 mi3.11 mi1408+2221337+2141337+2141053(Top 4%)995(Top 6%)995(Top 18%)
20K12.43 mi3.11 mi1276+1321207+1301207+130983(Top 3%)926(Top 6%)926(Top 16%)
Half13.11 mi0.68 mi1232+441165+421165+42737(Top 3%)691(Top 4%)691(Top 12%)
25K15.53 mi2.42 mi1144+881081+841081+84802(Top 3%)752(Top 5%)752(Top 13%)
30K18.64 mi3.11 mi1027+117967+114967+114655(Top 2%)613(Top 4%)613(Top 11%)
20M20.00 mi1.36 mi974+53916+51916+51736(Top 3%)694(Top 4%)694(Top 12%)
21M21.00 mi1.00 mi937+37882+34882+34648(Top 2%)612(Top 4%)612(Top 11%)
35K21.75 mi0.75 mi882+55828+54828+54371(Top 1%)346(Top 2%)346(Top 6%)
23M23.00 mi1.25 mi834+48782+46782+46420(Top 1%)394(Top 2%)394(Top 7%)
24M24.00 mi1.00 mi788+46738+44738+44286(Top 1%)264(Top 2%)264(Top 5%)
40K24.85 mi0.85 mi741+47692+46692+46272(Top 1.0%)251(Top 2%)251(Top 4%)
25.2M25.20 mi0.35 mi736+5687+5687+5694(Top 2%)644(Top 4%)644(Top 11%)
Finish26.22 mi1.02 mi705+31656+31656+31357(Top 1%)334(Top 2%)334(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1053

Males

995

M18-39

995

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1475

Males

1400

M18-39

1400

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1053

Males

995

M18-39

995

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

983

Males

926

M18-39

926

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

737

Males

691

M18-39

691

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

802

Males

752

M18-39

752

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

655

Males

613

M18-39

613

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

736

Males

694

M18-39

694

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

648

Males

612

M18-39

612

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

371

Males

346

M18-39

346

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

420

Males

394

M18-39

394

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

286

Males

264

M18-39

264

24M→40K

24.0 - 24.9 mi

Top 1.0%
×1story
+6ft-20ft

Overall

272

Males

251

M18-39

251

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

694

Males

644

M18-39

644

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

357

Males

334

M18-39

334

Passing Analysis

Category:
Athletes Passed
1174
Passed By
55
Net Change
+1119
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1824
5K → 10K21622+194#1824#1630
10K → 15K2231+222#1630#1408
15K → 20K1386+132#1408#1276
20K → Half440+44#1276#1232
Half → 25K924+88#1232#1144
25K → 30K1214+117#1144#1027
30K → 20M574+53#1027#974
20M → 21M414+37#974#937
21M → 35K550+55#937#882
35K → 23M502+48#882#834
23M → 24M460+46#834#788
24M → 40K481+47#788#741
40K → 25.2M94+5#741#736
25.2M → Finish343+31#736#705
TOTALS117455+1119
📊

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