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BOSTON MARATHON 2023

Cormac O Reilly

Bib: 10092•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
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
24:29
Rank: #13078
Start → 5K
24:29 | 7:53/mi
10K· 6.21 mi
49:32
Rank: #14177 (-1099)
5K → 10K
25:03 | 8:04/mi
15K· 9.32 mi
1:15:12
Rank: #14879 (-702)
10K → 15K
25:40 | 8:16/mi
20K· 12.43 mi
1:40:56
Rank: #15026 (-147)
15K → 20K
25:44 | 8:17/mi
Half· 13.11 mi
1:46:36
Rank: #15113 (-87)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:06:52
Rank: #15107 (+6)
Half → 25K
20:16 | 8:22/mi
30K· 18.64 mi
2:33:55
Rank: #15172 (-65)
25K → 30K
27:03 | 8:42/mi
20M
2:45:56
Rank: #15210 (-38)
30K → 20M
12:01 | 8:51/mi
21M
2:55:27
Rank: #15241 (-31)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
3:01:57
Rank: #15252 (-11)
21M → 35K
6:30 | 8:41/mi
23M
3:13:09
Rank: #15276 (-24)
35K → 23M
11:12 | 8:57/mi
24M
3:22:02
Rank: #15346 (-70)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:29:46
Rank: #15391 (-45)
24M → 40K
7:44 | 9:03/mi
25.2M
3:33:09
Rank: #15398 (-7)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:42:31
Rank: #15569 (-171)
25.2M → Finish
9:22 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:36
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:55:55
Pace8:51 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3724:297:5324:29
7:53
-
10K
6.21 mi11:15:4049:327:5825:03
8:04
+0:11
15K
9.32 mi11:41:201:15:128:0425:40
8:16
+0:12
20K
12.43 mi12:07:041:40:568:0725:44
8:17
+0:01
Half
13.11 mi12:12:441:46:368:085:40
8:18
+0:01
25K
15.53 mi12:33:002:06:528:1020:16
8:22
+0:04
30K
18.64 mi13:00:032:33:558:1527:03
8:42
+0:20
20M
20.00 mi13:12:042:45:568:1812:01
8:51
+0:09
21M
21.00 mi13:21:352:55:278:219:31
9:31
+0:40
35K
21.75 mi13:28:053:01:578:226:30
8:41
-0:50
23M
23.00 mi13:39:173:13:098:2411:12
8:57
+0:16
24M
24.00 mi13:48:103:22:028:258:53
8:53
-0:04
40K
24.85 mi13:55:543:29:468:267:44
9:03
+0:10
25.2M
25.20 mi13:59:173:33:098:283:23
9:49
+0:46
Finish
26.22 mi14:08:393:42:318:309:22
9:11
-0:38

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

7:53 /mi

Average Pace

8:30 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:52

57% of race

Time at Steady Pace

1:05:39

30% of race

Time at Slower Pace

30:00

13% of race

Average Pace: 8:29 /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 mi10:50:3724:297:5324:29
7:53
#13078
10K
6.21 mi11:15:4049:327:5825:03
8:04
#14177
15K
9.32 mi11:41:201:15:128:0425:40
8:16
#14879
20K
12.43 mi12:07:041:40:568:0725:44
8:17
#15026
Half
13.11 mi12:12:441:46:368:085:40
8:18
#15113
25K
15.53 mi12:33:002:06:528:1020:16
8:22
#15107
30K
18.64 mi13:00:032:33:558:1527:03
8:42
#15172
20M
20.00 mi13:12:042:45:568:1812:01
8:51
#15210
21M
21.00 mi13:21:352:55:278:219:31
9:31
#15241
35K
21.75 mi13:28:053:01:578:226:30
8:41
#15252
23M
23.00 mi13:39:173:13:098:2411:12
8:57
#15276
24M
24.00 mi13:48:103:22:028:258:53
8:53
#15346
40K
24.85 mi13:55:543:29:468:267:44
9:03
#15391
25.2M
25.20 mi13:59:173:33:098:283:23
9:49
#15398
Finish
26.22 mi14:08:393:42:318:309:22
9:11
#15569
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi130789576957616280(Top 61%)10798(Top 71%)10798(Top 526%)
10K6.21 mi3.10 mi14177-109910010-43410010-43415256(Top 57%)10406(Top 69%)10406(Top 507%)
15K9.32 mi3.11 mi14879-70210274-26410274-26416280(Top 61%)10798(Top 71%)10798(Top 526%)
20K12.43 mi3.11 mi15026-14710308-3410308-3415494(Top 58%)10448(Top 69%)10448(Top 509%)
Half13.11 mi0.68 mi15113-8710340-3210340-3216467(Top 62%)10859(Top 72%)10859(Top 529%)
25K15.53 mi2.42 mi15107+610312+2810312+2815308(Top 58%)10264(Top 68%)10264(Top 500%)
30K18.64 mi3.11 mi15172-6510285+2710285+2715540(Top 58%)10283(Top 68%)10283(Top 501%)
20M20.00 mi1.36 mi15210-3810275+1010275+1015663(Top 59%)10275(Top 68%)10275(Top 501%)
21M21.00 mi1.00 mi15241-3110264+1110264+1116012(Top 60%)10355(Top 68%)10355(Top 505%)
35K21.75 mi0.75 mi15252-1110253+1110253+1116325(Top 61%)10411(Top 69%)10411(Top 507%)
23M23.00 mi1.25 mi15276-2410244+910244+915757(Top 59%)10131(Top 67%)10131(Top 494%)
24M24.00 mi1.00 mi15346-7010256-1210256-1216665(Top 63%)10470(Top 69%)10470(Top 510%)
40K24.85 mi0.85 mi15391-4510252+410252+416353(Top 61%)10278(Top 68%)10278(Top 501%)
25.2M25.20 mi0.35 mi15398-710245+710245+716523(Top 62%)10335(Top 68%)10335(Top 504%)
Finish26.22 mi1.02 mi15569-17110302-5710302-5718847(Top 71%)11463(Top 76%)11463(Top 559%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16280

Males

10798

M50-54

10798

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15256

Males

10406

M50-54

10406

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16280

Males

10798

M50-54

10798

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15494

Males

10448

M50-54

10448

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16467

Males

10859

M50-54

10859

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15308

Males

10264

M50-54

10264

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15540

Males

10283

M50-54

10283

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15663

Males

10275

M50-54

10275

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16012

Males

10355

M50-54

10355

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16325

Males

10411

M50-54

10411

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15757

Males

10131

M50-54

10131

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16665

Males

10470

M50-54

10470

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16353

Males

10278

M50-54

10278

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16523

Males

10335

M50-54

10335

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18847

Males

11463

M50-54

11463

Passing Analysis

Category:
Athletes Passed
954
Passed By
3445
Net Change
-2491
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13078
5K → 10K391138-1099#13078#14177
10K → 15K43745-702#14177#14879
15K → 20K142289-147#14879#15026
20K → Half13100-87#15026#15113
Half → 25K137131+6#15113#15107
25K → 30K160225-65#15107#15172
30K → 20M70108-38#15172#15210
20M → 21M75106-31#15210#15241
21M → 35K3748-11#15241#15252
35K → 23M84108-24#15252#15276
23M → 24M50120-70#15276#15346
24M → 40K4893-45#15346#15391
40K → 25.2M2835-7#15391#15398
25.2M → Finish28199-171#15398#15569
TOTALS9543445-2491
📊

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