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BOSTON MARATHON 2023

Simon Cook

Bib: 31290•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:25/mi
29:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:34/mi
55:52
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:23:28
↑ 67↓ 78
20K· 12.43 mi
9:53/mi
1:54:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
2:00:11
↑ 19↓ 370.5%
25K· 15.53 mi
9:11/mi
2:22:28
↑ 66↓ 880.2%
30K· 18.64 mi
9:27/mi
2:51:51
↑ 181↓ 1480.2%
20M
9:12/mi
3:04:21
↑ 64↓ 500.2%
21M
9:47/mi
3:14:08
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:20:36
↑ 17↓ 861.7%
23M
8:43/mi
3:31:31
↑ 23↓ 630.6%
24M
8:25/mi
3:39:56
↓ 821.3%
40K· 24.85 mi
8:42/mi
3:47:22
↓ 200.3%
25.2M
8:48/mi
3:50:24
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:58:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:00:11
Pace9:10 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:58:20
Pace9:02 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5229:149:2529:14
9:25
-
10K
6.21 mi12:16:3055:528:5926:38
8:34
-0:51
15K
9.32 mi12:44:061:23:288:5727:36
8:53
+0:19
20K
12.43 mi13:14:491:54:119:1130:43
9:53
+1:00
Half
13.11 mi13:20:492:00:119:106:00
8:48
-1:05
25K
15.53 mi13:43:062:22:289:1022:17
9:11
+0:23
30K
18.64 mi14:12:292:51:519:1329:23
9:27
+0:16
20M
20.00 mi14:24:593:04:219:1312:30
9:12
-0:15
21M
21.00 mi14:34:463:14:089:159:47
9:47
+0:35
35K
21.75 mi14:41:143:20:369:136:28
8:39
-1:08
23M
23.00 mi14:52:093:31:319:1210:55
8:43
+0:04
24M
24.00 mi15:00:343:39:569:108:25
8:25
-0:18
40K
24.85 mi15:08:003:47:229:097:26
8:42
+0:17
25.2M
25.20 mi15:11:023:50:249:093:02
8:48
+0:06
Finish
26.22 mi15:19:093:58:319:068:07
7:58
-0:50

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

7:58 /mi

Average Pace

9:06 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:32

7% of race

Time at Steady Pace

1:28:05

37% of race

Time at Slower Pace

2:13:54

56% of race

Average Pace: 9:06 /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 mi11:49:5229:149:2529:14
9:25
#21828
10K
6.21 mi12:16:3055:528:5926:38
8:34
#20607
15K
9.32 mi12:44:061:23:288:5727:36
8:53
#20366
20K
12.43 mi13:14:491:54:119:1130:43
9:53
#21151
Half
13.11 mi13:20:492:00:119:106:00
8:48
#21066
25K
15.53 mi13:43:062:22:289:1022:17
9:11
#20838
30K
18.64 mi14:12:292:51:519:1329:23
9:27
#20520
20M
20.00 mi14:24:593:04:219:1312:30
9:12
#20314
21M
21.00 mi14:34:463:14:089:159:47
9:47
#20134
35K
21.75 mi14:41:143:20:369:136:28
8:39
#19996
23M
23.00 mi14:52:093:31:319:1210:55
8:43
#19723
24M
24.00 mi15:00:343:39:569:108:25
8:25
#19523
40K
24.85 mi15:08:003:47:229:097:26
8:42
#19362
25.2M
25.20 mi15:11:023:50:249:093:02
8:48
#19264
Finish
26.22 mi15:19:093:58:319:068:07
7:58
#19042
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi21828130081300819948(Top 75%)12272(Top 81%)12272(Top 863%)
10K6.21 mi3.10 mi20607+122112494+51412494+51418675(Top 70%)11773(Top 78%)11773(Top 828%)
15K9.32 mi3.11 mi20366+24112404+9012404+9019948(Top 75%)12272(Top 81%)12272(Top 863%)
20K12.43 mi3.11 mi21151-78512779-37512779-37522599(Top 85%)13441(Top 89%)13441(Top 945%)
Half13.11 mi0.68 mi21066+8512738+4112738+4119423(Top 73%)12064(Top 79%)12064(Top 848%)
25K15.53 mi2.42 mi20838+22812647+9112647+9119787(Top 74%)12185(Top 80%)12185(Top 857%)
30K18.64 mi3.11 mi20520+31812480+16712480+16719271(Top 72%)11910(Top 78%)11910(Top 838%)
20M20.00 mi1.36 mi20314+20612373+10712373+10717536(Top 66%)11050(Top 73%)11050(Top 777%)
21M21.00 mi1.00 mi20134+18012283+9012283+9017189(Top 65%)10875(Top 72%)10875(Top 765%)
35K21.75 mi0.75 mi19996+13812226+5712226+5716089(Top 60%)10339(Top 68%)10339(Top 727%)
23M23.00 mi1.25 mi19723+27312102+12412102+12414500(Top 54%)9588(Top 63%)9588(Top 674%)
24M24.00 mi1.00 mi19523+20012004+9812004+9813970(Top 52%)9306(Top 61%)9306(Top 654%)
40K24.85 mi0.85 mi19362+16111935+6911935+6914466(Top 54%)9451(Top 62%)9451(Top 665%)
25.2M25.20 mi0.35 mi19264+9811888+4711888+4711308(Top 42%)7971(Top 53%)7971(Top 561%)
Finish26.22 mi1.02 mi19042+22211789+9911789+9911867(Top 45%)8229(Top 54%)8229(Top 579%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19948

Males

12272

M55-59

12272

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18675

Males

11773

M55-59

11773

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19948

Males

12272

M55-59

12272

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22599

Males

13441

M55-59

13441

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19423

Males

12064

M55-59

12064

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19787

Males

12185

M55-59

12185

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

19271

Males

11910

M55-59

11910

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17536

Males

11050

M55-59

11050

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17189

Males

10875

M55-59

10875

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16089

Males

10339

M55-59

10339

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14500

Males

9588

M55-59

9588

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13970

Males

9306

M55-59

9306

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14466

Males

9451

M55-59

9451

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11308

Males

7971

M55-59

7971

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11867

Males

8229

M55-59

8229

Passing Analysis

Category:
Athletes Passed
3769
Passed By
983
Net Change
+2786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21828
5K → 10K124221+1221#21828#20607
10K → 15K31776+241#20607#20366
15K → 20K29814-785#20366#21151
20K → Half927+85#21151#21066
Half → 25K24517+228#21066#20838
25K → 30K33921+318#20838#20520
30K → 20M2126+206#20520#20314
20M → 21M1888+180#20314#20134
21M → 35K1413+138#20134#19996
35K → 23M2763+273#19996#19723
23M → 24M2000+200#19723#19523
24M → 40K1643+161#19523#19362
40K → 25.2M980+98#19362#19264
25.2M → Finish2264+222#19264#19042
TOTALS3769983+2786
📊

Passing Visuals

Category:
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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