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BOSTON MARATHON 2023

Randy Naylor

Bib: 27384•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:17
Rank: #19348
Start → 5K
27:17 | 8:47/mi
10K· 6.21 mi
53:24
Rank: #18493 (+855)
5K → 10K
26:07 | 8:24/mi
15K· 9.32 mi
1:19:23
Rank: #17947 (+546)
10K → 15K
25:59 | 8:22/mi
20K· 12.43 mi
1:45:29
Rank: #17471 (+476)
15K → 20K
26:06 | 8:24/mi
Half· 13.11 mi
1:51:07
Rank: #17403 (+68)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:11:27
Rank: #17093 (+310)
Half → 25K
20:20 | 8:23/mi
30K· 18.64 mi
2:38:14
Rank: #16700 (+393)
25K → 30K
26:47 | 8:37/mi
20M
2:49:52
Rank: #16483 (+217)
30K → 20M
11:38 | 8:34/mi
21M
2:58:59
Rank: #16331 (+152)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
3:05:14
Rank: #16257 (+74)
21M → 35K
6:15 | 8:21/mi
23M
3:16:03
Rank: #16108 (+149)
35K → 23M
10:49 | 8:38/mi
24M
3:24:07
Rank: #15903 (+205)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:31:20
Rank: #15790 (+113)
24M → 40K
7:13 | 8:26/mi
25.2M
3:34:25
Rank: #15736 (+54)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:42:30
Rank: #15562 (+174)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:51:07
Pace8:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:51:23
Pace8:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2927:178:4727:17
8:47
-
10K
6.21 mi12:10:3653:248:3626:07
8:24
-0:23
15K
9.32 mi12:36:351:19:238:3125:59
8:22
-0:02
20K
12.43 mi13:02:411:45:298:2926:06
8:24
+0:02
Half
13.11 mi13:08:191:51:078:295:38
8:15
-0:09
25K
15.53 mi13:28:392:11:278:2820:20
8:23
+0:08
30K
18.64 mi13:55:262:38:148:2926:47
8:37
+0:14
20M
20.00 mi14:07:042:49:528:3011:38
8:34
-0:03
21M
21.00 mi14:16:112:58:598:319:07
9:07
+0:33
35K
21.75 mi14:22:263:05:148:316:15
8:21
-0:46
23M
23.00 mi14:33:153:16:038:3110:49
8:38
+0:17
24M
24.00 mi14:41:193:24:078:308:04
8:04
-0:34
40K
24.85 mi14:48:323:31:208:307:13
8:26
+0:22
25.2M
25.20 mi14:51:373:34:258:313:05
8:56
+0:30
Finish
26.22 mi14:59:423:42:308:308:05
7:56
-1:00

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

7:56 /mi

Average Pace

8:30 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:01

82% of race

Time at Steady Pace

39:29

18% of race

Time at Slower Pace

0:00

0% 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 mi11:44:2927:178:4727:17
8:47
#19348
10K
6.21 mi12:10:3653:248:3626:07
8:24
#18493
15K
9.32 mi12:36:351:19:238:3125:59
8:22
#17947
20K
12.43 mi13:02:411:45:298:2926:06
8:24
#17471
Half
13.11 mi13:08:191:51:078:295:38
8:15
#17403
25K
15.53 mi13:28:392:11:278:2820:20
8:23
#17093
30K
18.64 mi13:55:262:38:148:2926:47
8:37
#16700
20M
20.00 mi14:07:042:49:528:3011:38
8:34
#16483
21M
21.00 mi14:16:112:58:598:319:07
9:07
#16331
35K
21.75 mi14:22:263:05:148:316:15
8:21
#16257
23M
23.00 mi14:33:153:16:038:3110:49
8:38
#16108
24M
24.00 mi14:41:193:24:078:308:04
8:04
#15903
40K
24.85 mi14:48:323:31:208:307:13
8:26
#15790
25.2M
25.20 mi14:51:373:34:258:313:05
8:56
#15736
Finish
26.22 mi14:59:423:42:308:308:05
7:56
#15562
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19348119151191516918(Top 64%)11039(Top 73%)11039(Top 209%)
10K6.21 mi3.10 mi18493+85511649+26611649+26617608(Top 66%)11340(Top 75%)11340(Top 215%)
15K9.32 mi3.11 mi17947+54611434+21511434+21516918(Top 64%)11039(Top 73%)11039(Top 209%)
20K12.43 mi3.11 mi17471+47611250+18411250+18416237(Top 61%)10725(Top 71%)10725(Top 203%)
Half13.11 mi0.68 mi17403+6811220+3011220+3016149(Top 61%)10734(Top 71%)10734(Top 203%)
25K15.53 mi2.42 mi17093+31011072+14811072+14815485(Top 58%)10333(Top 68%)10333(Top 196%)
30K18.64 mi3.11 mi16700+39310880+19210880+19215034(Top 56%)10067(Top 66%)10067(Top 190%)
20M20.00 mi1.36 mi16483+21710773+10710773+10713993(Top 53%)9575(Top 63%)9575(Top 181%)
21M21.00 mi1.00 mi16331+15210694+7910694+7914053(Top 53%)9525(Top 63%)9525(Top 180%)
35K21.75 mi0.75 mi16257+7410656+3810656+3814415(Top 54%)9610(Top 63%)9610(Top 182%)
23M23.00 mi1.25 mi16108+14910572+8410572+8414007(Top 53%)9375(Top 62%)9375(Top 177%)
24M24.00 mi1.00 mi15903+20510466+10610466+10611694(Top 44%)8262(Top 54%)8262(Top 156%)
40K24.85 mi0.85 mi15790+11310411+5510411+5512966(Top 49%)8772(Top 58%)8772(Top 166%)
25.2M25.20 mi0.35 mi15736+5410389+2210389+2212161(Top 46%)8355(Top 55%)8355(Top 158%)
Finish26.22 mi1.02 mi15562+17410301+8810301+8811618(Top 44%)8111(Top 53%)8111(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

16918

Males

11039

M18-39

11039

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17608

Males

11340

M18-39

11340

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

16918

Males

11039

M18-39

11039

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16237

Males

10725

M18-39

10725

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16149

Males

10734

M18-39

10734

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15485

Males

10333

M18-39

10333

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15034

Males

10067

M18-39

10067

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

13993

Males

9575

M18-39

9575

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14053

Males

9525

M18-39

9525

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14415

Males

9610

M18-39

9610

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14007

Males

9375

M18-39

9375

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11694

Males

8262

M18-39

8262

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12966

Males

8772

M18-39

8772

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12161

Males

8355

M18-39

8355

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11618

Males

8111

M18-39

8111

Passing Analysis

Category:
Athletes Passed
4057
Passed By
271
Net Change
+3786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19348
5K → 10K95499+855#19348#18493
10K → 15K57731+546#18493#17947
15K → 20K49721+476#17947#17471
20K → Half746+68#17471#17403
Half → 25K32313+310#17403#17093
25K → 30K40613+393#17093#16700
30K → 20M22710+217#16700#16483
20M → 21M16513+152#16483#16331
21M → 35K9016+74#16331#16257
35K → 23M17021+149#16257#16108
23M → 24M2105+205#16108#15903
24M → 40K12714+113#15903#15790
40K → 25.2M606+54#15790#15736
25.2M → Finish1773+174#15736#15562
TOTALS4057271+3786
📊

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