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BOSTON MARATHON 2023

Robert Twitchell

Bib: 29575•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
29:05
Rank: #21691
Start → 5K
29:05 | 9:22/mi
10K· 6.21 mi
57:43
Rank: #21690 (+1)
5K → 10K
28:38 | 9:13/mi
15K· 9.32 mi
1:26:44
Rank: #21707 (-17)
10K → 15K
29:01 | 9:20/mi
20K· 12.43 mi
1:56:22
Rank: #21704 (+3)
15K → 20K
29:38 | 9:32/mi
Half· 13.11 mi
2:02:47
Rank: #21718 (-14)
20K → Half
6:25 | 9:24/mi
25K· 15.53 mi
2:26:09
Rank: #21612 (+106)
Half → 25K
23:22 | 9:38/mi
30K· 18.64 mi
2:57:25
Rank: #21537 (+75)
25K → 30K
31:16 | 10:04/mi
20M
3:11:14
Rank: #21492 (+45)
30K → 20M
13:49 | 10:10/mi
21M
3:21:56
Rank: #21391 (+101)
20M → 21M
10:42 | 10:42/mi
35K· 21.75 mi
3:29:08
Rank: #21337 (+54)
21M → 35K
7:12 | 9:37/mi
23M
3:41:57
Rank: #21292 (+45)
35K → 23M
12:49 | 10:14/mi
24M
3:52:16
Rank: #21299 (-7)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
4:01:15
Rank: #21302 (-3)
24M → 40K
8:59 | 10:30/mi
25.2M
4:05:14
Rank: #21292 (+10)
40K → 25.2M
3:59 | 11:33/mi
Finish· 26.22 mi
4:15:18
Rank: #21297 (-5)
25.2M → Finish
10:04 | 9:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:47
Pace9:22 /mi
2nd Half
Distance13.11 mi
Time2:12:31
Pace10:07 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0429:059:2229:05
9:22
-
10K
6.21 mi12:17:4257:439:1728:38
9:13
-0:09
15K
9.32 mi12:46:431:26:449:1829:01
9:20
+0:07
20K
12.43 mi13:16:211:56:229:2229:38
9:32
+0:12
Half
13.11 mi13:22:462:02:479:226:25
9:24
-0:08
25K
15.53 mi13:46:082:26:099:2423:22
9:38
+0:14
30K
18.64 mi14:17:242:57:259:3131:16
10:04
+0:26
20M
20.00 mi14:31:133:11:149:3413:49
10:10
+0:06
21M
21.00 mi14:41:553:21:569:3710:42
10:42
+0:32
35K
21.75 mi14:49:073:29:089:377:12
9:37
-1:05
23M
23.00 mi15:01:563:41:579:3912:49
10:14
+0:37
24M
24.00 mi15:12:153:52:169:4110:19
10:19
+0:05
40K
24.85 mi15:21:144:01:159:428:59
10:30
+0:11
25.2M
25.20 mi15:25:134:05:149:443:59
11:33
+1:03
Finish
26.22 mi15:35:174:15:189:4510:04
9:53
-1:40

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

9:13 /mi

Average Pace

9:45 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:47

48% of race

Time at Steady Pace

1:25:43

34% of race

Time at Slower Pace

46:48

18% of race

Average Pace: 9:44 /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 mi11:49:0429:059:2229:05
9:22
#21691
10K
6.21 mi12:17:4257:439:1728:38
9:13
#21690
15K
9.32 mi12:46:431:26:449:1829:01
9:20
#21707
20K
12.43 mi13:16:211:56:229:2229:38
9:32
#21704
Half
13.11 mi13:22:462:02:479:226:25
9:24
#21718
25K
15.53 mi13:46:082:26:099:2423:22
9:38
#21612
30K
18.64 mi14:17:242:57:259:3131:16
10:04
#21537
20M
20.00 mi14:31:133:11:149:3413:49
10:10
#21492
21M
21.00 mi14:41:553:21:569:3710:42
10:42
#21391
35K
21.75 mi14:49:073:29:089:377:12
9:37
#21337
23M
23.00 mi15:01:563:41:579:3912:49
10:14
#21292
24M
24.00 mi15:12:153:52:169:4110:19
10:19
#21299
40K
24.85 mi15:21:144:01:159:428:59
10:30
#21302
25.2M
25.20 mi15:25:134:05:149:443:59
11:33
#21292
Finish
26.22 mi15:35:174:15:189:4510:04
9:53
#21297
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21691129351293521769(Top 82%)13089(Top 86%)13089(Top 248%)
10K6.21 mi3.10 mi21690+112987-5212987-5221661(Top 81%)13004(Top 86%)13004(Top 246%)
15K9.32 mi3.11 mi21707-1713007-2013007-2021769(Top 82%)13089(Top 86%)13089(Top 248%)
20K12.43 mi3.11 mi21704+313022-1513022-1521669(Top 81%)13038(Top 86%)13038(Top 247%)
Half13.11 mi0.68 mi21718-1413031-913031-921811(Top 82%)13093(Top 86%)13093(Top 248%)
25K15.53 mi2.42 mi21612+10612986+4512986+4521247(Top 80%)12817(Top 84%)12817(Top 243%)
30K18.64 mi3.11 mi21537+7512936+5012936+5021193(Top 80%)12716(Top 84%)12716(Top 241%)
20M20.00 mi1.36 mi21492+4512909+2712909+2720919(Top 79%)12532(Top 83%)12532(Top 237%)
21M21.00 mi1.00 mi21391+10112849+6012849+6020147(Top 76%)12124(Top 80%)12124(Top 229%)
35K21.75 mi0.75 mi21337+5412815+3412815+3420211(Top 76%)12134(Top 80%)12134(Top 230%)
23M23.00 mi1.25 mi21292+4512776+3912776+3920666(Top 78%)12316(Top 81%)12316(Top 233%)
24M24.00 mi1.00 mi21299-712770+612770+621596(Top 81%)12682(Top 84%)12682(Top 240%)
40K24.85 mi0.85 mi21302-312763+712763+721223(Top 80%)12465(Top 82%)12465(Top 236%)
25.2M25.20 mi0.35 mi21292+1012758+512758+521643(Top 81%)12688(Top 84%)12688(Top 240%)
Finish26.22 mi1.02 mi21297-512751+712751+721398(Top 80%)12595(Top 83%)12595(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21769

Males

13089

M18-39

13089

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21661

Males

13004

M18-39

13004

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21769

Males

13089

M18-39

13089

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

21669

Males

13038

M18-39

13038

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21811

Males

13093

M18-39

13093

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21247

Males

12817

M18-39

12817

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21193

Males

12716

M18-39

12716

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

20919

Males

12532

M18-39

12532

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20147

Males

12124

M18-39

12124

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

20211

Males

12134

M18-39

12134

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20666

Males

12316

M18-39

12316

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21596

Males

12682

M18-39

12682

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21223

Males

12465

M18-39

12465

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21643

Males

12688

M18-39

12688

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

21398

Males

12595

M18-39

12595

Passing Analysis

Category:
Athletes Passed
1400
Passed By
1006
Net Change
+394
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21691
5K → 10K285284+1#21691#21690
10K → 15K157174-17#21690#21707
15K → 20K124121+3#21707#21704
20K → Half1731-14#21704#21718
Half → 25K15145+106#21718#21612
25K → 30K16893+75#21612#21537
30K → 20M8338+45#21537#21492
20M → 21M11817+101#21492#21391
21M → 35K628+54#21391#21337
35K → 23M9348+45#21337#21292
23M → 24M4249-7#21292#21299
24M → 40K3942-3#21299#21302
40K → 25.2M2818+10#21302#21292
25.2M → Finish3338-5#21292#21297
TOTALS14001006+394
📊

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