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BOSTON MARATHON 2023

James Cotter

Bib: 13358•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:15
Rank: #12374
Start → 5K
24:15 | 7:48/mi
10K· 6.21 mi
48:29
Rank: #12718 (-344)
5K → 10K
24:14 | 7:48/mi
15K· 9.32 mi
1:12:44
Rank: #12704 (+14)
10K → 15K
24:15 | 7:48/mi
20K· 12.43 mi
1:36:46
Rank: #12278 (+426)
15K → 20K
24:02 | 7:44/mi
Half· 13.11 mi
1:42:00
Rank: #12237 (+41)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:00:57
Rank: #12063 (+174)
Half → 25K
18:57 | 7:49/mi
30K· 18.64 mi
2:25:48
Rank: #11794 (+269)
25K → 30K
24:51 | 8:00/mi
20M
2:36:38
Rank: #11633 (+161)
30K → 20M
10:50 | 7:58/mi
21M
2:45:21
Rank: #11641 (-8)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:51:19
Rank: #11647 (-6)
21M → 35K
5:58 | 7:59/mi
23M
3:01:51
Rank: #11693 (-46)
35K → 23M
10:32 | 8:25/mi
24M
3:09:55
Rank: #11694 (-1)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:16:58
Rank: #11685 (+9)
24M → 40K
7:03 | 8:15/mi
25.2M
3:20:09
Rank: #11721 (-36)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:28:42
Rank: #11859 (-138)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:00
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:46:42
Pace8:08 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5224:157:4824:15
7:48
-
10K
6.21 mi11:17:0648:297:4824:14
7:48
0:00
15K
9.32 mi11:41:211:12:447:4824:15
7:48
0:00
20K
12.43 mi12:05:231:36:467:4724:02
7:44
-0:04
Half
13.11 mi12:10:371:42:007:475:14
7:40
-0:04
25K
15.53 mi12:29:342:00:577:4718:57
7:49
+0:09
30K
18.64 mi12:54:252:25:487:4924:51
8:00
+0:11
20M
20.00 mi13:05:152:36:387:5010:50
7:58
-0:02
21M
21.00 mi13:13:582:45:217:528:43
8:43
+0:45
35K
21.75 mi13:19:562:51:197:535:58
7:59
-0:44
23M
23.00 mi13:30:283:01:517:5410:32
8:25
+0:26
24M
24.00 mi13:38:323:09:557:558:04
8:04
-0:21
40K
24.85 mi13:45:353:16:587:557:03
8:15
+0:11
25.2M
25.20 mi13:48:463:20:097:573:11
9:14
+0:59
Finish
26.22 mi13:57:193:28:427:588:33
8:23
-0:51

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

7:40 /mi

Average Pace

7:58 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:16

14% of race

Time at Steady Pace

2:21:24

68% of race

Time at Slower Pace

38:02

18% of race

Average Pace: 7:58 /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 mi10:52:5224:157:4824:15
7:48
#12374
10K
6.21 mi11:17:0648:297:4824:14
7:48
#12718
15K
9.32 mi11:41:211:12:447:4824:15
7:48
#12704
20K
12.43 mi12:05:231:36:467:4724:02
7:44
#12278
Half
13.11 mi12:10:371:42:007:475:14
7:40
#12237
25K
15.53 mi12:29:342:00:577:4718:57
7:49
#12063
30K
18.64 mi12:54:252:25:487:4924:51
8:00
#11794
20M
20.00 mi13:05:152:36:387:5010:50
7:58
#11633
21M
21.00 mi13:13:582:45:217:528:43
8:43
#11641
35K
21.75 mi13:19:562:51:197:535:58
7:59
#11647
23M
23.00 mi13:30:283:01:517:5410:32
8:25
#11693
24M
24.00 mi13:38:323:09:557:558:04
8:04
#11694
40K
24.85 mi13:45:353:16:587:557:03
8:15
#11685
25.2M
25.20 mi13:48:463:20:097:573:11
9:14
#11721
Finish
26.22 mi13:57:193:28:427:588:33
8:23
#11859
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi123749271927112755(Top 48%)9412(Top 62%)9412(Top 459%)
10K6.21 mi3.10 mi12718-3449431-1609431-16013100(Top 49%)9590(Top 63%)9590(Top 467%)
15K9.32 mi3.11 mi12704+149400+319400+3112755(Top 48%)9412(Top 62%)9412(Top 459%)
20K12.43 mi3.11 mi12278+4269182+2189182+21811183(Top 42%)8664(Top 57%)8664(Top 422%)
Half13.11 mi0.68 mi12237+419160+229160+2211583(Top 44%)8896(Top 59%)8896(Top 434%)
25K15.53 mi2.42 mi12063+1749069+919069+9111209(Top 42%)8599(Top 57%)8599(Top 419%)
30K18.64 mi3.11 mi11794+2698914+1558914+15510904(Top 41%)8306(Top 55%)8306(Top 405%)
20M20.00 mi1.36 mi11633+1618829+858829+8510064(Top 38%)7797(Top 51%)7797(Top 380%)
21M21.00 mi1.00 mi11641-88812+178812+1711745(Top 44%)8461(Top 56%)8461(Top 412%)
35K21.75 mi0.75 mi11647-68808+48808+411913(Top 45%)8524(Top 56%)8524(Top 415%)
23M23.00 mi1.25 mi11693-468803+58803+512639(Top 47%)8748(Top 58%)8748(Top 426%)
24M24.00 mi1.00 mi11694-18785+188785+1811667(Top 44%)8235(Top 54%)8235(Top 401%)
40K24.85 mi0.85 mi11685+98757+288757+2811641(Top 44%)8143(Top 54%)8143(Top 397%)
25.2M25.20 mi0.35 mi11721-368762-58762-513723(Top 52%)9091(Top 60%)9091(Top 443%)
Finish26.22 mi1.02 mi11859-1388799-378799-3714635(Top 55%)9546(Top 63%)9546(Top 465%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12755

Males

9412

M50-54

9412

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13100

Males

9590

M50-54

9590

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12755

Males

9412

M50-54

9412

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11183

Males

8664

M50-54

8664

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11583

Males

8896

M50-54

8896

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11209

Males

8599

M50-54

8599

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10904

Males

8306

M50-54

8306

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10064

Males

7797

M50-54

7797

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11745

Males

8461

M50-54

8461

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11913

Males

8524

M50-54

8524

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12639

Males

8748

M50-54

8748

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11667

Males

8235

M50-54

8235

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11641

Males

8143

M50-54

8143

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13723

Males

9091

M50-54

9091

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14635

Males

9546

M50-54

9546

Passing Analysis

Category:
Athletes Passed
2042
Passed By
1527
Net Change
+515
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12374
5K → 10K176520-344#12374#12718
10K → 15K216202+14#12718#12704
15K → 20K45529+426#12704#12278
20K → Half5312+41#12278#12237
Half → 25K22046+174#12237#12063
25K → 30K33465+269#12063#11794
30K → 20M17817+161#11794#11633
20M → 21M8896-8#11633#11641
21M → 35K5258-6#11641#11647
35K → 23M79125-46#11647#11693
23M → 24M6970-1#11693#11694
24M → 40K6455+9#11694#11685
40K → 25.2M2258-36#11685#11721
25.2M → Finish36174-138#11721#11859
TOTALS20421527+515
📊

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