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BOSTON MARATHON 2023

John Cook

Bib: 653•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 19%
Age Group (M18-39)
#0 / 5285
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
18:53
Rank: #836
Start → 5K
18:53 | 6:05/mi
10K· 6.21 mi
38:09
Rank: #1056 (-220)
5K → 10K
19:16 | 6:12/mi
15K· 9.32 mi
57:53
Rank: #1228 (-172)
10K → 15K
19:44 | 6:21/mi
20K· 12.43 mi
1:18:14
Rank: #1504 (-276)
15K → 20K
20:21 | 6:33/mi
Half· 13.11 mi
1:22:32
Rank: #1521 (-17)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:38:31
Rank: #1669 (-148)
Half → 25K
15:59 | 6:36/mi
30K· 18.64 mi
2:00:17
Rank: #1979 (-310)
25K → 30K
21:46 | 7:00/mi
20M
2:09:58
Rank: #2128 (-149)
30K → 20M
9:41 | 7:08/mi
21M
2:17:38
Rank: #2269 (-141)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:22:43
Rank: #2302 (-33)
21M → 35K
5:05 | 6:48/mi
23M
2:32:10
Rank: #2460 (-158)
35K → 23M
9:27 | 7:33/mi
24M
2:39:12
Rank: #2533 (-73)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
2:45:45
Rank: #2710 (-177)
24M → 40K
6:33 | 7:40/mi
25.2M
2:48:36
Rank: #2786 (-76)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
2:56:15
Rank: #2987 (-201)
25.2M → Finish
7:39 | 7:30/mi
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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:32
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:33:43
Pace7:09 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0818:536:0518:53
6:05
-
10K
6.21 mi10:38:2438:096:0819:16
6:12
+0:07
15K
9.32 mi10:58:0857:536:1319:44
6:21
+0:09
20K
12.43 mi11:18:291:18:146:1820:21
6:33
+0:12
Half
13.11 mi11:22:471:22:326:184:18
6:18
-0:15
25K
15.53 mi11:38:461:38:316:2115:59
6:36
+0:18
30K
18.64 mi12:00:322:00:176:2721:46
7:00
+0:24
20M
20.00 mi12:10:132:09:586:309:41
7:08
+0:08
21M
21.00 mi12:17:532:17:386:337:40
7:40
+0:32
35K
21.75 mi12:22:582:22:436:345:05
6:48
-0:52
23M
23.00 mi12:32:252:32:106:379:27
7:33
+0:45
24M
24.00 mi12:39:272:39:126:387:02
7:02
-0:31
40K
24.85 mi12:46:002:45:456:406:33
7:40
+0:38
25.2M
25.20 mi12:48:512:48:366:412:51
8:16
+0:36
Finish
26.22 mi12:56:302:56:156:447:39
7:30
-0:46

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:05 /mi

Average Pace

6:44 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:38:31

56% of race

Time at Steady Pace

43:34

25% of race

Time at Slower Pace

34:10

19% of race

Average Pace: 6:43 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:19:0818:536:0518:53
6:05
#836
10K
6.21 mi10:38:2438:096:0819:16
6:12
#1056
15K
9.32 mi10:58:0857:536:1319:44
6:21
#1228
20K
12.43 mi11:18:291:18:146:1820:21
6:33
#1504
Half
13.11 mi11:22:471:22:326:184:18
6:18
#1521
25K
15.53 mi11:38:461:38:316:2115:59
6:36
#1669
30K
18.64 mi12:00:322:00:176:2721:46
7:00
#1979
20M
20.00 mi12:10:132:09:586:309:41
7:08
#2128
21M
21.00 mi12:17:532:17:386:337:40
7:40
#2269
35K
21.75 mi12:22:582:22:436:345:05
6:48
#2302
23M
23.00 mi12:32:252:32:106:379:27
7:33
#2460
24M
24.00 mi12:39:272:39:126:387:02
7:02
#2533
40K
24.85 mi12:46:002:45:456:406:33
7:40
#2710
25.2M
25.20 mi12:48:512:48:366:412:51
8:16
#2786
Finish
26.22 mi12:56:302:56:156:447:39
7:30
#2987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8367867861883(Top 7%)1804(Top 12%)1804(Top 34%)
10K6.21 mi3.10 mi1056-220999-213999-2131370(Top 5%)1306(Top 9%)1306(Top 25%)
15K9.32 mi3.11 mi1228-1721165-1661165-1661883(Top 7%)1804(Top 12%)1804(Top 34%)
20K12.43 mi3.11 mi1504-2761436-2711436-2712568(Top 10%)2457(Top 16%)2457(Top 46%)
Half13.11 mi0.68 mi1521-171452-161452-161825(Top 7%)1754(Top 12%)1754(Top 33%)
25K15.53 mi2.42 mi1669-1481597-1451597-1452669(Top 10%)2555(Top 17%)2555(Top 48%)
30K18.64 mi3.11 mi1979-3101896-2991896-2994360(Top 16%)4048(Top 27%)4048(Top 77%)
20M20.00 mi1.36 mi2128-1492039-1432039-1434715(Top 18%)4305(Top 28%)4305(Top 81%)
21M21.00 mi1.00 mi2269-1412175-1362175-1365406(Top 20%)4759(Top 31%)4759(Top 90%)
35K21.75 mi0.75 mi2302-332205-302205-304108(Top 15%)3758(Top 25%)3758(Top 71%)
23M23.00 mi1.25 mi2460-1582354-1492354-1496675(Top 25%)5606(Top 37%)5606(Top 106%)
24M24.00 mi1.00 mi2533-732421-672421-674812(Top 18%)4281(Top 28%)4281(Top 81%)
40K24.85 mi0.85 mi2710-1772583-1622583-1627628(Top 29%)5992(Top 39%)5992(Top 113%)
25.2M25.20 mi0.35 mi2786-762647-642647-647929(Top 30%)6089(Top 40%)6089(Top 115%)
Finish26.22 mi1.02 mi2987-2012828-1812828-1818550(Top 32%)6480(Top 43%)6480(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1883

Males

1804

M18-39

1804

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1370

Males

1306

M18-39

1306

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1883

Males

1804

M18-39

1804

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2568

Males

2457

M18-39

2457

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1825

Males

1754

M18-39

1754

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2669

Males

2555

M18-39

2555

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4360

Males

4048

M18-39

4048

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4715

Males

4305

M18-39

4305

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5406

Males

4759

M18-39

4759

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4108

Males

3758

M18-39

3758

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6675

Males

5606

M18-39

5606

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4812

Males

4281

M18-39

4281

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7628

Males

5992

M18-39

5992

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7929

Males

6089

M18-39

6089

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8550

Males

6480

M18-39

6480

Passing Analysis

Category:
Athletes Passed
105
Passed By
2256
Net Change
-2151
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#836
5K → 10K4224-220#836#1056
10K → 15K4176-172#1056#1228
15K → 20K6282-276#1228#1504
20K → Half320-17#1504#1521
Half → 25K11159-148#1521#1669
25K → 30K11321-310#1669#1979
30K → 20M8157-149#1979#2128
20M → 21M9150-141#2128#2269
21M → 35K1346-33#2269#2302
35K → 23M10168-158#2302#2460
23M → 24M780-73#2460#2533
24M → 40K9186-177#2533#2710
40K → 25.2M177-76#2710#2786
25.2M → Finish9210-201#2786#2987
TOTALS1052256-2151
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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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