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BOSTON MARATHON 2023

John Clohisey

Bib: 31109•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 12%
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
9:36/mi
29:49
↑ 97↓ 3451.5%
10K· 6.21 mi
8:56/mi
57:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:24:46
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:52:08
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:58:04
↑ 19↓ 370.5%
25K· 15.53 mi
8:44/mi
2:19:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:50/mi
2:46:41
↑ 181↓ 1480.2%
20M
8:50/mi
2:58:41
↑ 64↓ 500.2%
21M
9:22/mi
3:08:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
3:14:33
↑ 17↓ 861.7%
23M
8:50/mi
3:25:37
↑ 23↓ 630.6%
24M
8:35/mi
3:34:12
↓ 821.3%
40K· 24.85 mi
8:43/mi
3:41:39
↓ 200.3%
25.2M
9:31/mi
3:44:56
↑ 13↓ 160.2%
Finish· 26.22 mi
8:41/mi
3:53:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:58:04
Pace9:00 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:43
Pace8:50 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0329:499:3629:49
9:36
-
10K
6.21 mi12:19:4857:349:1627:45
8:56
-0:40
15K
9.32 mi12:47:001:24:469:0627:12
8:45
-0:11
20K
12.43 mi13:14:221:52:089:0127:22
8:49
+0:04
Half
13.11 mi13:20:181:58:049:005:56
8:42
-0:07
25K
15.53 mi13:41:292:19:158:5821:11
8:44
+0:02
30K
18.64 mi14:08:552:46:418:5727:26
8:50
+0:06
20M
20.00 mi14:20:552:58:418:5612:00
8:50
0:00
21M
21.00 mi14:30:173:08:038:579:22
9:22
+0:32
35K
21.75 mi14:36:473:14:338:576:30
8:41
-0:41
23M
23.00 mi14:47:513:25:378:5611:04
8:50
+0:09
24M
24.00 mi14:56:263:34:128:568:35
8:35
-0:15
40K
24.85 mi15:03:533:41:398:557:27
8:43
+0:08
25.2M
25.20 mi15:07:103:44:568:563:17
9:31
+0:48
Finish
26.22 mi15:16:013:53:478:558:51
8:41
-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

8:35 /mi

Average Pace

8:55 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:41

86% of race

Time at Steady Pace

33:06

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:55 /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 mi11:52:0329:499:3629:49
9:36
#22360
10K
6.21 mi12:19:4857:349:1627:45
8:56
#21617
15K
9.32 mi12:47:001:24:469:0627:12
8:45
#21013
20K
12.43 mi13:14:221:52:089:0127:22
8:49
#20464
Half
13.11 mi13:20:181:58:049:005:56
8:42
#20395
25K
15.53 mi13:41:292:19:158:5821:11
8:44
#19954
30K
18.64 mi14:08:552:46:418:5727:26
8:50
#19317
20M
20.00 mi14:20:552:58:418:5612:00
8:50
#19045
21M
21.00 mi14:30:173:08:038:579:22
9:22
#18825
35K
21.75 mi14:36:473:14:338:576:30
8:41
#18723
23M
23.00 mi14:47:513:25:378:5611:04
8:50
#18513
24M
24.00 mi14:56:263:34:128:568:35
8:35
#18373
40K
24.85 mi15:03:533:41:398:557:27
8:43
#18247
25.2M
25.20 mi15:07:103:44:568:563:17
9:31
#18205
Finish
26.22 mi15:16:013:53:478:558:51
8:41
#18136
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi22360132841328419252(Top 72%)11986(Top 79%)11986(Top 5627%)
10K6.21 mi3.10 mi21617+74312951+33312951+33320571(Top 77%)12525(Top 83%)12525(Top 5880%)
15K9.32 mi3.11 mi21013+60412699+25212699+25219252(Top 72%)11986(Top 79%)11986(Top 5627%)
20K12.43 mi3.11 mi20464+54912461+23812461+23818718(Top 70%)11775(Top 78%)11775(Top 5528%)
Half13.11 mi0.68 mi20395+6912433+2812433+2818876(Top 71%)11841(Top 78%)11841(Top 5559%)
25K15.53 mi2.42 mi19954+44112245+18812245+18817578(Top 66%)11233(Top 74%)11233(Top 5274%)
30K18.64 mi3.11 mi19317+63711971+27411971+27416242(Top 61%)10586(Top 70%)10586(Top 4970%)
20M20.00 mi1.36 mi19045+27211843+12811843+12815605(Top 59%)10256(Top 68%)10256(Top 4815%)
21M21.00 mi1.00 mi18825+22011736+10711736+10715328(Top 58%)10071(Top 66%)10071(Top 4728%)
35K21.75 mi0.75 mi18723+10211690+4611690+4616339(Top 61%)10425(Top 69%)10425(Top 4894%)
23M23.00 mi1.25 mi18513+21011588+10211588+10215198(Top 57%)9899(Top 65%)9899(Top 4647%)
24M24.00 mi1.00 mi18373+14011512+7611512+7614961(Top 56%)9739(Top 64%)9739(Top 4572%)
40K24.85 mi0.85 mi18247+12611442+7011442+7014576(Top 55%)9501(Top 63%)9501(Top 4461%)
25.2M25.20 mi0.35 mi18205+4211420+2211420+2215262(Top 57%)9803(Top 65%)9803(Top 4602%)
Finish26.22 mi1.02 mi18136+6911384+3611384+3616393(Top 62%)10338(Top 68%)10338(Top 4854%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

19252

Males

11986

M70-74

11986

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20571

Males

12525

M70-74

12525

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

19252

Males

11986

M70-74

11986

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18718

Males

11775

M70-74

11775

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18876

Males

11841

M70-74

11841

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17578

Males

11233

M70-74

11233

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16242

Males

10586

M70-74

10586

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

15605

Males

10256

M70-74

10256

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15328

Males

10071

M70-74

10071

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16339

Males

10425

M70-74

10425

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15198

Males

9899

M70-74

9899

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14961

Males

9739

M70-74

9739

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14576

Males

9501

M70-74

9501

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15262

Males

9803

M70-74

9803

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16393

Males

10338

M70-74

10338

Passing Analysis

Category:
Athletes Passed
4374
Passed By
150
Net Change
+4224
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22360
5K → 10K79249+743#22360#21617
10K → 15K61713+604#21617#21013
15K → 20K5567+549#21013#20464
20K → Half723+69#20464#20395
Half → 25K4432+441#20395#19954
25K → 30K6447+637#19954#19317
30K → 20M2742+272#19317#19045
20M → 21M2244+220#19045#18825
21M → 35K11412+102#18825#18723
35K → 23M2166+210#18723#18513
23M → 24M1466+140#18513#18373
24M → 40K1337+126#18373#18247
40K → 25.2M508+42#18247#18205
25.2M → Finish9324+69#18205#18136
TOTALS4374150+4224
📊

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