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BOSTON MARATHON 2023

Christopher Dalton

Bib: 25272•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
36:54
Rank: #26391
Start → 5K
36:54 | 11:53/mi
10K· 6.21 mi
1:12:21
Rank: #26195 (+196)
5K → 10K
35:27 | 11:25/mi
15K· 9.32 mi
1:49:49
Rank: #26167 (+28)
10K → 15K
37:28 | 12:04/mi
20K· 12.43 mi
2:23:15
Rank: #25819 (+348)
15K → 20K
33:26 | 10:46/mi
Half· 13.11 mi
2:31:07
Rank: #25806 (+13)
20K → Half
7:52 | 11:32/mi
25K· 15.53 mi
2:59:49
Rank: #25673 (+133)
Half → 25K
28:42 | 11:50/mi
30K· 18.64 mi
3:39:08
Rank: #25600 (+73)
25K → 30K
39:19 | 12:39/mi
20M
3:56:00
Rank: #25529 (+71)
30K → 20M
16:52 | 12:25/mi
21M
4:09:41
Rank: #25497 (+32)
20M → 21M
13:41 | 13:41/mi
35K· 21.75 mi
4:19:13
Rank: #25496 (+1)
21M → 35K
9:32 | 12:45/mi
23M
4:36:45
Rank: #25531 (-35)
35K → 23M
17:32 | 14:00/mi
24M
4:50:13
Rank: #25558 (-27)
23M → 24M
13:28 | 13:28/mi
40K· 24.85 mi
5:03:03
Rank: #25603 (-45)
24M → 40K
12:50 | 15:01/mi
25.2M
5:08:44
Rank: #25637 (-34)
40K → 25.2M
5:41 | 16:29/mi
Finish· 26.22 mi
5:21:18
Rank: #25641 (-4)
25.2M → Finish
12:34 | 12:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:31:07
Pace11:32 /mi
2nd Half
Distance13.11 mi
Time2:50:11
Pace12:59 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:0536:5411:5336:54
11:53
-
10K
6.21 mi12:34:321:12:2111:3935:27
11:25
-0:28
15K
9.32 mi13:12:001:49:4911:4737:28
12:04
+0:39
20K
12.43 mi13:45:262:23:1511:3233:26
10:46
-1:18
Half
13.11 mi13:53:182:31:0711:327:52
11:32
+0:46
25K
15.53 mi14:22:002:59:4911:3528:42
11:50
+0:18
30K
18.64 mi15:01:193:39:0811:4539:19
12:39
+0:49
20M
20.00 mi15:18:113:56:0011:4816:52
12:25
-0:14
21M
21.00 mi15:31:524:09:4111:5313:41
13:41
+1:16
35K
21.75 mi15:41:244:19:1311:559:32
12:45
-0:56
23M
23.00 mi15:58:564:36:4512:0217:32
14:00
+1:15
24M
24.00 mi16:12:244:50:1312:0613:28
13:28
-0:32
40K
24.85 mi16:25:145:03:0312:1212:50
15:01
+1:33
25.2M
25.20 mi16:30:555:08:4412:155:41
16:29
+1:28
Finish
26.22 mi16:43:295:21:1812:1612:34
12:20
-4:09

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

10:46 /mi

Average Pace

12:16 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:45

24% of race

Time at Steady Pace

3:01:21

56% of race

Time at Slower Pace

1:03:12

20% of race

Average Pace: 12:15 /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 mi11:59:0536:5411:5336:54
11:53
#26391
10K
6.21 mi12:34:321:12:2111:3935:27
11:25
#26195
15K
9.32 mi13:12:001:49:4911:4737:28
12:04
#26167
20K
12.43 mi13:45:262:23:1511:3233:26
10:46
#25819
Half
13.11 mi13:53:182:31:0711:327:52
11:32
#25806
25K
15.53 mi14:22:002:59:4911:3528:42
11:50
#25673
30K
18.64 mi15:01:193:39:0811:4539:19
12:39
#25600
20M
20.00 mi15:18:113:56:0011:4816:52
12:25
#25529
21M
21.00 mi15:31:524:09:4111:5313:41
13:41
#25497
35K
21.75 mi15:41:244:19:1311:559:32
12:45
#25496
23M
23.00 mi15:58:564:36:4512:0217:32
14:00
#25531
24M
24.00 mi16:12:244:50:1312:0613:28
13:28
#25558
40K
24.85 mi16:25:145:03:0312:1212:50
15:01
#25603
25.2M
25.20 mi16:30:555:08:4412:155:41
16:29
#25637
Finish
26.22 mi16:43:295:21:1812:1612:34
12:20
#25641
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi26391150821508226097(Top 98%)14973(Top 99%)14973(Top 665%)
10K6.21 mi3.10 mi26195+19615011+7115011+7125888(Top 97%)14894(Top 98%)14894(Top 661%)
15K9.32 mi3.11 mi26167+2814998+1314998+1326097(Top 98%)14973(Top 99%)14973(Top 665%)
20K12.43 mi3.11 mi25819+34814860+13814860+13824267(Top 91%)14174(Top 93%)14174(Top 629%)
Half13.11 mi0.68 mi25806+1314855+514855+525511(Top 96%)14694(Top 97%)14694(Top 652%)
25K15.53 mi2.42 mi25673+13314791+6414791+6425017(Top 94%)14471(Top 95%)14471(Top 643%)
30K18.64 mi3.11 mi25600+7314749+4214749+4225139(Top 94%)14472(Top 95%)14472(Top 643%)
20M20.00 mi1.36 mi25529+7114713+3614713+3624649(Top 93%)14211(Top 94%)14211(Top 631%)
21M21.00 mi1.00 mi25497+3214690+2314690+2324753(Top 93%)14255(Top 94%)14255(Top 633%)
35K21.75 mi0.75 mi25496+114688+214688+225369(Top 95%)14499(Top 96%)14499(Top 644%)
23M23.00 mi1.25 mi25531-3514701-1314701-1325824(Top 97%)14746(Top 97%)14746(Top 655%)
24M24.00 mi1.00 mi25558-2714707-614707-625782(Top 97%)14695(Top 97%)14695(Top 653%)
40K24.85 mi0.85 mi25603-4514727-2014727-2026151(Top 98%)14885(Top 98%)14885(Top 661%)
25.2M25.20 mi0.35 mi25637-3414745-1814745-1826254(Top 99%)14954(Top 99%)14954(Top 664%)
Finish26.22 mi1.02 mi25641-414741+414741+425540(Top 96%)14577(Top 96%)14577(Top 647%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

26097

Males

14973

M45-49

14973

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

25888

Males

14894

M45-49

14894

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

26097

Males

14973

M45-49

14973

15K→20K

9.3 - 12.4 mi

Top 91%
×5stories
+106ft-86ft

Overall

24267

Males

14174

M45-49

14174

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25511

Males

14694

M45-49

14694

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

25017

Males

14471

M45-49

14471

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

25139

Males

14472

M45-49

14472

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24649

Males

14211

M45-49

14211

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

24753

Males

14255

M45-49

14255

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

25369

Males

14499

M45-49

14499

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25824

Males

14746

M45-49

14746

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25782

Males

14695

M45-49

14695

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26151

Males

14885

M45-49

14885

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26254

Males

14954

M45-49

14954

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

25540

Males

14577

M45-49

14577

Passing Analysis

Category:
Athletes Passed
1062
Passed By
312
Net Change
+750
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26391
5K → 10K1971+196#26391#26195
10K → 15K7345+28#26195#26167
15K → 20K3480+348#26167#25819
20K → Half229+13#25819#25806
Half → 25K14411+133#25806#25673
25K → 30K10330+73#25673#25600
30K → 20M754+71#25600#25529
20M → 21M419+32#25529#25497
21M → 35K1918+1#25497#25496
35K → 23M1247-35#25496#25531
23M → 24M835-27#25531#25558
24M → 40K449-45#25558#25603
40K → 25.2M337-34#25603#25637
25.2M → Finish1317-4#25637#25641
TOTALS1062312+750
📊

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