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BOSTON MARATHON 2023

Christopher Colby

Bib: 17919•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
13:09/mi
40:52
↑ 97↓ 3451.5%
10K· 6.21 mi
13:07/mi
1:21:36
↑ 79↓ 1380.4%
15K· 9.32 mi
13:39/mi
2:04:02
↑ 67↓ 78
20K· 12.43 mi
14:06/mi
2:47:50
↑ 106↓ 860.1%
Half· 13.11 mi
13:45/mi
2:57:13
↑ 19↓ 370.5%
25K· 15.53 mi
14:13/mi
3:31:40
↑ 66↓ 880.2%
30K· 18.64 mi
14:16/mi
4:15:59
↑ 181↓ 1480.2%
20M
15:15/mi
4:36:42
↑ 64↓ 500.2%
21M
15:05/mi
4:51:47
↑ 106↓ 241.6%
35K· 21.75 mi
13:42/mi
5:02:02
↑ 17↓ 861.7%
23M
14:22/mi
5:20:01
↑ 23↓ 630.6%
24M
13:05/mi
5:33:06
↓ 821.3%
40K· 24.85 mi
13:35/mi
5:44:43
↓ 200.3%
25.2M
17:24/mi
5:50:43
↑ 13↓ 160.2%
Finish· 26.22 mi
12:26/mi
6:03:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:57:13
Pace13:31 /mi
2nd Half
Distance13.11 mi
Time3:06:10
Pace14:12 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:4740:5213:0940:52
13:09
-
10K
6.21 mi12:12:311:21:3613:0840:44
13:07
-0:02
15K
9.32 mi12:54:572:04:0213:1842:26
13:39
+0:32
20K
12.43 mi13:38:452:47:5013:3043:48
14:06
+0:27
Half
13.11 mi13:48:082:57:1313:319:23
13:45
-0:21
25K
15.53 mi14:22:353:31:4013:3834:27
14:13
+0:28
30K
18.64 mi15:06:544:15:5913:4444:19
14:16
+0:03
20M
20.00 mi15:27:374:36:4213:5020:43
15:15
+0:59
21M
21.00 mi15:42:424:51:4713:5415:05
15:05
-0:10
35K
21.75 mi15:52:575:02:0213:5310:15
13:42
-1:23
23M
23.00 mi16:10:565:20:0113:5517:59
14:22
+0:40
24M
24.00 mi16:24:015:33:0613:5313:05
13:05
-1:17
40K
24.85 mi16:35:385:44:4313:5211:37
13:35
+0:30
25.2M
25.20 mi16:41:385:50:4313:556:00
17:24
+3:49
Finish
26.22 mi16:54:186:03:2313:5212:40
12:26
-4:58

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

12:26 /mi

Average Pace

13:52 /mi

Slowest Pace

17:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:21

30% of race

Time at Steady Pace

3:16:15

54% of race

Time at Slower Pace

59:47

16% of race

Average Pace: 13:52 /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 mi11:31:4740:5213:0940:52
13:09
#26596
10K
6.21 mi12:12:311:21:3613:0840:44
13:07
#26595
15K
9.32 mi12:54:572:04:0213:1842:26
13:39
#26601
20K
12.43 mi13:38:452:47:5013:3043:48
14:06
#26600
Half
13.11 mi13:48:082:57:1313:319:23
13:45
#26599
25K
15.53 mi14:22:353:31:4013:3834:27
14:13
#26595
30K
18.64 mi15:06:544:15:5913:4444:19
14:16
#26592
20M
20.00 mi15:27:374:36:4213:5020:43
15:15
#26591
21M
21.00 mi15:42:424:51:4713:5415:05
15:05
#26587
35K
21.75 mi15:52:575:02:0213:5310:15
13:42
#26586
23M
23.00 mi16:10:565:20:0113:5517:59
14:22
#26585
24M
24.00 mi16:24:015:33:0613:5313:05
13:05
#26578
40K
24.85 mi16:35:385:44:4313:5211:37
13:35
#26563
25.2M
25.20 mi16:41:385:50:4313:556:00
17:24
#26570
Finish
26.22 mi16:54:186:03:2313:5212:40
12:26
#26559
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi26596151601516026583(Top 100%)15151(Top 100%)15151(Top 1065%)
10K6.21 mi3.10 mi26595+115161-115161-126570(Top 100%)15149(Top 100%)15149(Top 1065%)
15K9.32 mi3.11 mi26601-6151611516126583(Top 100%)15151(Top 100%)15151(Top 1065%)
20K12.43 mi3.11 mi26600+115159+215159+226535(Top 100%)15136(Top 100%)15136(Top 1064%)
Half13.11 mi0.68 mi26599+115158+115158+126505(Top 100%)15116(Top 100%)15116(Top 1063%)
25K15.53 mi2.42 mi26595+415156+215156+226417(Top 99%)15079(Top 99%)15079(Top 1060%)
30K18.64 mi3.11 mi26592+315155+115155+126155(Top 98%)14962(Top 99%)14962(Top 1052%)
20M20.00 mi1.36 mi26591+1151551515526370(Top 99%)15035(Top 99%)15035(Top 1057%)
21M21.00 mi1.00 mi26587+415154+115154+125776(Top 97%)14761(Top 97%)14761(Top 1038%)
35K21.75 mi0.75 mi26586+115153+115153+126016(Top 98%)14853(Top 98%)14853(Top 1045%)
23M23.00 mi1.25 mi26585+115152+115152+126043(Top 98%)14864(Top 98%)14864(Top 1045%)
24M24.00 mi1.00 mi26578+7151521515225538(Top 96%)14570(Top 96%)14570(Top 1025%)
40K24.85 mi0.85 mi26563+1515146+615146+625411(Top 95%)14517(Top 96%)14517(Top 1021%)
25.2M25.20 mi0.35 mi26570-715148-215148-226432(Top 99%)15056(Top 99%)15056(Top 1059%)
Finish26.22 mi1.02 mi26559+1115142+615142+625631(Top 96%)14618(Top 96%)14618(Top 1028%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

26583

Males

15151

M55-59

15151

5K→10K

3.1 - 6.2 mi

Top 100%
×5story building
+79ft-138ft

Overall

26570

Males

15149

M55-59

15149

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

26583

Males

15151

M55-59

15151

15K→20K

9.3 - 12.4 mi

Top 100%
×5story building
+106ft-86ft

Overall

26535

Males

15136

M55-59

15136

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

26505

Males

15116

M55-59

15116

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26417

Males

15079

M55-59

15079

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

26155

Males

14962

M55-59

14962

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26370

Males

15035

M55-59

15035

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25776

Males

14761

M55-59

14761

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

26016

Males

14853

M55-59

14853

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26043

Males

14864

M55-59

14864

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25538

Males

14570

M55-59

14570

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

25411

Males

14517

M55-59

14517

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26432

Males

15056

M55-59

15056

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

25631

Males

14618

M55-59

14618

Passing Analysis

Category:
Athletes Passed
73
Passed By
36
Net Change
+37
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26596
5K → 10K87+1#26596#26595
10K → 15K39-6#26595#26601
15K → 20K43+1#26601#26600
20K → Half21+1#26600#26599
Half → 25K51+4#26599#26595
25K → 30K74+3#26595#26592
30K → 20M21+1#26592#26591
20M → 21M40+4#26591#26587
21M → 35K21+1#26587#26586
35K → 23M21+1#26586#26585
23M → 24M70+7#26585#26578
24M → 40K150+15#26578#26563
40K → 25.2M07-7#26563#26570
25.2M → Finish121+11#26570#26559
TOTALS7336+37
📊

Passing Visuals

Category:
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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