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BOSTON MARATHON 2023

Nick O'brien

Bib: 6659•M

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 19%
Masters (Masters Men)
#0 / 9891
Top 7%
Division (M40-44)
#0 / 2241
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:20
Rank: #5252
Start → 5K
21:20 | 6:52/mi
10K· 6.21 mi
42:05
Rank: #4712 (+540)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:03:00
Rank: #4592 (+120)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:50
Rank: #4307 (+285)
15K → 20K
20:50 | 6:42/mi
Half· 13.11 mi
1:28:24
Rank: #4288 (+19)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:30
Rank: #4031 (+257)
Half → 25K
16:06 | 6:38/mi
30K· 18.64 mi
2:05:25
Rank: #3668 (+363)
25K → 30K
20:55 | 6:44/mi
20M
2:14:33
Rank: #3520 (+148)
30K → 20M
9:08 | 6:43/mi
21M
2:21:38
Rank: #3400 (+120)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:26:37
Rank: #3370 (+30)
21M → 35K
4:59 | 6:40/mi
23M
2:35:04
Rank: #3287 (+83)
35K → 23M
8:27 | 6:45/mi
24M
2:41:45
Rank: #3241 (+46)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:47:31
Rank: #3191 (+50)
24M → 40K
5:46 | 6:45/mi
25.2M
2:49:58
Rank: #3159 (+32)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:56:26
Rank: #3041 (+118)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:24
Pace6:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:02
Pace6:43 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5821:206:5221:20
6:52
-
10K
6.21 mi10:45:4342:056:4620:45
6:41
-0:11
15K
9.32 mi11:06:381:03:006:4620:55
6:44
+0:03
20K
12.43 mi11:27:281:23:506:4520:50
6:42
-0:02
Half
13.11 mi11:32:021:28:246:454:34
6:42
0:00
25K
15.53 mi11:48:081:44:306:4416:06
6:38
-0:04
30K
18.64 mi12:09:032:05:256:4420:55
6:44
+0:06
20M
20.00 mi12:18:112:14:336:449:08
6:43
-0:01
21M
21.00 mi12:25:162:21:386:457:05
7:05
+0:22
35K
21.75 mi12:30:152:26:376:444:59
6:40
-0:25
23M
23.00 mi12:38:422:35:046:458:27
6:45
+0:05
24M
24.00 mi12:45:232:41:456:446:41
6:41
-0:04
40K
24.85 mi12:51:092:47:316:445:46
6:45
+0:04
25.2M
25.20 mi12:53:362:49:586:452:27
7:06
+0:21
Finish
26.22 mi13:00:042:56:266:446:28
6:21
-0:45

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

6:21 /mi

Average Pace

6:44 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:54

95% of race

Time at Steady Pace

9:32

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:24:5821:206:5221:20
6:52
#5252
10K
6.21 mi10:45:4342:056:4620:45
6:41
#4712
15K
9.32 mi11:06:381:03:006:4620:55
6:44
#4592
20K
12.43 mi11:27:281:23:506:4520:50
6:42
#4307
Half
13.11 mi11:32:021:28:246:454:34
6:42
#4288
25K
15.53 mi11:48:081:44:306:4416:06
6:38
#4031
30K
18.64 mi12:09:032:05:256:4420:55
6:44
#3668
20M
20.00 mi12:18:112:14:336:449:08
6:43
#3520
21M
21.00 mi12:25:162:21:386:457:05
7:05
#3400
35K
21.75 mi12:30:152:26:376:444:59
6:40
#3370
23M
23.00 mi12:38:422:35:046:458:27
6:45
#3287
24M
24.00 mi12:45:232:41:456:446:41
6:41
#3241
40K
24.85 mi12:51:092:47:316:445:46
6:45
#3191
25.2M
25.20 mi12:53:362:49:586:452:27
7:06
#3159
Finish
26.22 mi13:00:042:56:266:446:28
6:21
#3041
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5252485948594430(Top 17%)4139(Top 27%)4139(Top 185%)
10K6.21 mi3.10 mi4712+5404393+4664393+4664131(Top 16%)3875(Top 26%)3875(Top 173%)
15K9.32 mi3.11 mi4592+1204287+1064287+1064430(Top 17%)4139(Top 27%)4139(Top 185%)
20K12.43 mi3.11 mi4307+2854035+2524035+2523616(Top 14%)3421(Top 23%)3421(Top 153%)
Half13.11 mi0.68 mi4288+194013+224013+224182(Top 16%)3906(Top 26%)3906(Top 174%)
25K15.53 mi2.42 mi4031+2573791+2223791+2222951(Top 11%)2818(Top 19%)2818(Top 126%)
30K18.64 mi3.11 mi3668+3633467+3243467+3242578(Top 10%)2452(Top 16%)2452(Top 109%)
20M20.00 mi1.36 mi3520+1483330+1373330+1372392(Top 9%)2268(Top 15%)2268(Top 101%)
21M21.00 mi1.00 mi3400+1203220+1103220+1102557(Top 10%)2415(Top 16%)2415(Top 108%)
35K21.75 mi0.75 mi3370+303189+313189+313323(Top 12%)3093(Top 20%)3093(Top 138%)
23M23.00 mi1.25 mi3287+833113+763113+762393(Top 9%)2250(Top 15%)2250(Top 100%)
24M24.00 mi1.00 mi3241+463067+463067+463003(Top 11%)2787(Top 18%)2787(Top 124%)
40K24.85 mi0.85 mi3191+503018+493018+492550(Top 10%)2364(Top 16%)2364(Top 105%)
25.2M25.20 mi0.35 mi3159+322992+262992+262142(Top 8%)1998(Top 13%)1998(Top 89%)
Finish26.22 mi1.02 mi3041+1182880+1122880+1121819(Top 7%)1703(Top 11%)1703(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4430

Males

4139

M40-44

4139

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4131

Males

3875

M40-44

3875

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4430

Males

4139

M40-44

4139

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3616

Males

3421

M40-44

3421

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4182

Males

3906

M40-44

3906

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2951

Males

2818

M40-44

2818

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2578

Males

2452

M40-44

2452

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2392

Males

2268

M40-44

2268

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2557

Males

2415

M40-44

2415

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3323

Males

3093

M40-44

3093

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2393

Males

2250

M40-44

2250

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3003

Males

2787

M40-44

2787

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2550

Males

2364

M40-44

2364

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2142

Males

1998

M40-44

1998

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1819

Males

1703

M40-44

1703

Passing Analysis

Category:
Athletes Passed
2424
Passed By
213
Net Change
+2211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5252
5K → 10K57030+540#5252#4712
10K → 15K18262+120#4712#4592
15K → 20K29611+285#4592#4307
20K → Half3112+19#4307#4288
Half → 25K2592+257#4288#4031
25K → 30K3685+363#4031#3668
30K → 20M1535+148#3668#3520
20M → 21M13111+120#3520#3400
21M → 35K4616+30#3400#3370
35K → 23M9714+83#3370#3287
23M → 24M6620+46#3287#3241
24M → 40K6212+50#3241#3191
40K → 25.2M408+32#3191#3159
25.2M → Finish1235+118#3159#3041
TOTALS2424213+2211
📊

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