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BOSTON MARATHON 2023

Jeremy Naylor

Bib: 24727•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:34
Rank: #21193
Start → 5K
28:34 | 9:12/mi
10K· 6.21 mi
56:26
Rank: #20985 (+208)
5K → 10K
27:52 | 8:58/mi
15K· 9.32 mi
1:25:09
Rank: #21158 (-173)
10K → 15K
28:43 | 9:15/mi
20K· 12.43 mi
1:52:44
Rank: #20657 (+501)
15K → 20K
27:35 | 8:53/mi
Half· 13.11 mi
1:58:46
Rank: #20609 (+48)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:20:46
Rank: #20402 (+207)
Half → 25K
22:00 | 9:04/mi
30K· 18.64 mi
2:49:20
Rank: #19976 (+426)
25K → 30K
28:34 | 9:12/mi
20M
3:02:00
Rank: #19812 (+164)
30K → 20M
12:40 | 9:19/mi
21M
3:11:39
Rank: #19620 (+192)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
3:18:28
Rank: #19589 (+31)
21M → 35K
6:49 | 9:07/mi
23M
3:30:11
Rank: #19474 (+115)
35K → 23M
11:43 | 9:21/mi
24M
3:39:24
Rank: #19413 (+61)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:47:09
Rank: #19312 (+101)
24M → 40K
7:45 | 9:04/mi
25.2M
3:50:28
Rank: #19278 (+34)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:59:08
Rank: #19164 (+114)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:46
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1328:349:1228:34
9:12
-
10K
6.21 mi12:13:0556:269:0527:52
8:58
-0:14
15K
9.32 mi12:41:481:25:099:0828:43
9:15
+0:17
20K
12.43 mi13:09:231:52:449:0427:35
8:53
-0:22
Half
13.11 mi13:15:251:58:469:046:02
8:51
-0:02
25K
15.53 mi13:37:252:20:469:0422:00
9:04
+0:13
30K
18.64 mi14:05:592:49:209:0528:34
9:12
+0:08
20M
20.00 mi14:18:393:02:009:0612:40
9:19
+0:07
21M
21.00 mi14:28:183:11:399:089:39
9:39
+0:20
35K
21.75 mi14:35:073:18:289:086:49
9:07
-0:32
23M
23.00 mi14:46:503:30:119:0811:43
9:21
+0:14
24M
24.00 mi14:56:033:39:249:099:13
9:13
-0:08
40K
24.85 mi15:03:483:47:099:087:45
9:04
-0:09
25.2M
25.20 mi15:07:073:50:289:093:19
9:37
+0:33
Finish
26.22 mi15:15:473:59:089:088:40
8:30
-1:07

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

8:30 /mi

Average Pace

9:08 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:27

90% of race

Time at Steady Pace

24:41

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:07 /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 mi11:45:1328:349:1228:34
9:12
#21193
10K
6.21 mi12:13:0556:269:0527:52
8:58
#20985
15K
9.32 mi12:41:481:25:099:0828:43
9:15
#21158
20K
12.43 mi13:09:231:52:449:0427:35
8:53
#20657
Half
13.11 mi13:15:251:58:469:046:02
8:51
#20609
25K
15.53 mi13:37:252:20:469:0422:00
9:04
#20402
30K
18.64 mi14:05:592:49:209:0528:34
9:12
#19976
20M
20.00 mi14:18:393:02:009:0612:40
9:19
#19812
21M
21.00 mi14:28:183:11:399:089:39
9:39
#19620
35K
21.75 mi14:35:073:18:289:086:49
9:07
#19589
23M
23.00 mi14:46:503:30:119:0811:43
9:21
#19474
24M
24.00 mi14:56:033:39:249:099:13
9:13
#19413
40K
24.85 mi15:03:483:47:099:087:45
9:04
#19312
25.2M
25.20 mi15:07:073:50:289:093:19
9:37
#19278
Finish
26.22 mi15:15:473:59:089:088:40
8:30
#19164
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi21193127021270221445(Top 81%)12949(Top 85%)12949(Top 575%)
10K6.21 mi3.10 mi20985+20812648+5412648+5420740(Top 78%)12603(Top 83%)12603(Top 560%)
15K9.32 mi3.11 mi21158-17312773-12512773-12521445(Top 81%)12949(Top 85%)12949(Top 575%)
20K12.43 mi3.11 mi20657+50112554+21912554+21919101(Top 72%)11931(Top 79%)11931(Top 530%)
Half13.11 mi0.68 mi20609+4812536+1812536+1819685(Top 74%)12170(Top 80%)12170(Top 540%)
25K15.53 mi2.42 mi20402+20712446+9012446+9019292(Top 72%)11968(Top 79%)11968(Top 531%)
30K18.64 mi3.11 mi19976+42612236+21012236+21018136(Top 68%)11390(Top 75%)11390(Top 506%)
20M20.00 mi1.36 mi19812+16412165+7112165+7118107(Top 68%)11290(Top 74%)11290(Top 501%)
21M21.00 mi1.00 mi19620+19212075+9012075+9016644(Top 63%)10644(Top 70%)10644(Top 473%)
35K21.75 mi0.75 mi19589+3112054+2112054+2118370(Top 69%)11316(Top 75%)11316(Top 502%)
23M23.00 mi1.25 mi19474+11512000+5412000+5417751(Top 67%)11015(Top 73%)11015(Top 489%)
24M24.00 mi1.00 mi19413+6111966+3411966+3418113(Top 68%)11136(Top 73%)11136(Top 494%)
40K24.85 mi0.85 mi19312+10111915+5111915+5116477(Top 62%)10346(Top 68%)10346(Top 459%)
25.2M25.20 mi0.35 mi19278+3411895+2011895+2015728(Top 59%)10016(Top 66%)10016(Top 445%)
Finish26.22 mi1.02 mi19164+11411842+5311842+5315447(Top 58%)9932(Top 65%)9932(Top 441%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21445

Males

12949

M45-49

12949

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

20740

Males

12603

M45-49

12603

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21445

Males

12949

M45-49

12949

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19101

Males

11931

M45-49

11931

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

19685

Males

12170

M45-49

12170

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19292

Males

11968

M45-49

11968

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18136

Males

11390

M45-49

11390

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18107

Males

11290

M45-49

11290

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16644

Males

10644

M45-49

10644

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18370

Males

11316

M45-49

11316

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17751

Males

11015

M45-49

11015

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18113

Males

11136

M45-49

11136

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16477

Males

10346

M45-49

10346

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15728

Males

10016

M45-49

10016

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15447

Males

9932

M45-49

9932

Passing Analysis

Category:
Athletes Passed
2654
Passed By
625
Net Change
+2029
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21193
5K → 10K391183+208#21193#20985
10K → 15K96269-173#20985#21158
15K → 20K51211+501#21158#20657
20K → Half546+48#20657#20609
Half → 25K23225+207#20609#20402
25K → 30K4359+426#20402#19976
30K → 20M17814+164#19976#19812
20M → 21M20311+192#19812#19620
21M → 35K5322+31#19620#19589
35K → 23M13823+115#19589#19474
23M → 24M8423+61#19474#19413
24M → 40K1098+101#19413#19312
40K → 25.2M439+34#19312#19278
25.2M → Finish12612+114#19278#19164
TOTALS2654625+2029
📊

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