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BOSTON MARATHON 2023

John Carroll

Bib: 29582•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 (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
10:13/mi
31:45
↑ 97↓ 3451.5%
10K· 6.21 mi
10:12/mi
1:03:26
↑ 79↓ 1380.4%
15K· 9.32 mi
10:14/mi
1:35:13
↑ 67↓ 78
20K· 12.43 mi
10:35/mi
2:08:05
↑ 106↓ 860.1%
Half· 13.11 mi
9:57/mi
2:14:52
↑ 19↓ 370.5%
25K· 15.53 mi
10:31/mi
2:40:22
↑ 66↓ 880.2%
30K· 18.64 mi
11:14/mi
3:15:17
↑ 181↓ 1480.2%
20M
10:56/mi
3:30:09
↑ 64↓ 500.2%
21M
10:48/mi
3:40:57
↑ 106↓ 241.6%
35K· 21.75 mi
11:00/mi
3:49:11
↑ 17↓ 861.7%
23M
10:32/mi
4:02:22
↑ 23↓ 630.6%
24M
11:33/mi
4:13:55
↓ 821.3%
40K· 24.85 mi
10:48/mi
4:23:09
↓ 200.3%
25.2M
13:41/mi
4:27:52
↑ 13↓ 160.2%
Finish· 26.22 mi
10:23/mi
4:38:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:52
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:23:35
Pace10:57 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:0131:4510:1331:45
10:13
-
10K
6.21 mi12:26:421:03:2610:1331:41
10:12
-0:01
15K
9.32 mi12:58:291:35:1310:1331:47
10:14
+0:02
20K
12.43 mi13:31:212:08:0510:1832:52
10:35
+0:21
Half
13.11 mi13:38:082:14:5210:176:47
9:57
-0:38
25K
15.53 mi14:03:382:40:2210:1925:30
10:31
+0:34
30K
18.64 mi14:38:333:15:1710:2934:55
11:14
+0:43
20M
20.00 mi14:53:253:30:0910:3014:52
10:56
-0:18
21M
21.00 mi15:04:133:40:5710:3110:48
10:48
-0:08
35K
21.75 mi15:12:273:49:1110:328:14
11:00
+0:12
23M
23.00 mi15:25:384:02:2210:3213:11
10:32
-0:28
24M
24.00 mi15:37:114:13:5510:3511:33
11:33
+1:01
40K
24.85 mi15:46:254:23:0910:359:14
10:48
-0:45
25.2M
25.20 mi15:51:084:27:5210:384:43
13:41
+2:53
Finish
26.22 mi16:01:434:38:2710:3810:35
10:23
-3:18

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

9:57 /mi

Average Pace

10:38 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:47

2% of race

Time at Steady Pace

3:40:29

79% of race

Time at Slower Pace

51:11

18% of race

Average Pace: 10:37 /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 mi11:55:0131:4510:1331:45
10:13
#23999
10K
6.21 mi12:26:421:03:2610:1331:41
10:12
#24076
15K
9.32 mi12:58:291:35:1310:1331:47
10:14
#24046
20K
12.43 mi13:31:212:08:0510:1832:52
10:35
#24023
Half
13.11 mi13:38:082:14:5210:176:47
9:57
#23975
25K
15.53 mi14:03:382:40:2210:1925:30
10:31
#23821
30K
18.64 mi14:38:333:15:1710:2934:55
11:14
#23760
20M
20.00 mi14:53:253:30:0910:3014:52
10:56
#23661
21M
21.00 mi15:04:133:40:5710:3110:48
10:48
#23525
35K
21.75 mi15:12:273:49:1110:328:14
11:00
#23519
23M
23.00 mi15:25:384:02:2210:3213:11
10:32
#23424
24M
24.00 mi15:37:114:13:5510:3511:33
11:33
#23458
40K
24.85 mi15:46:254:23:0910:359:14
10:48
#23395
25.2M
25.20 mi15:51:084:27:5210:384:43
13:41
#23425
Finish
26.22 mi16:01:434:38:2710:3810:35
10:23
#23406
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23999140861408623946(Top 90%)14057(Top 93%)14057(Top 989%)
10K6.21 mi3.10 mi24076-7714117-3114117-3124129(Top 91%)14148(Top 93%)14148(Top 995%)
15K9.32 mi3.11 mi24046+3014108+914108+923946(Top 90%)14057(Top 93%)14057(Top 989%)
20K12.43 mi3.11 mi24023+2314096+1214096+1223973(Top 90%)14062(Top 93%)14062(Top 989%)
Half13.11 mi0.68 mi23975+4814077+1914077+1923148(Top 87%)13688(Top 90%)13688(Top 963%)
25K15.53 mi2.42 mi23821+15413999+7813999+7823229(Top 87%)13698(Top 90%)13698(Top 963%)
30K18.64 mi3.11 mi23760+6113954+4513954+4523475(Top 88%)13732(Top 90%)13732(Top 966%)
20M20.00 mi1.36 mi23661+9913894+6013894+6022599(Top 85%)13278(Top 87%)13278(Top 934%)
21M21.00 mi1.00 mi23525+13613827+6713827+6720377(Top 77%)12228(Top 81%)12228(Top 860%)
35K21.75 mi0.75 mi23519+613819+813819+823311(Top 88%)13520(Top 89%)13520(Top 951%)
23M23.00 mi1.25 mi23424+9513760+5913760+5921387(Top 80%)12638(Top 83%)12638(Top 889%)
24M24.00 mi1.00 mi23458-3413769-913769-923940(Top 90%)13782(Top 91%)13782(Top 969%)
40K24.85 mi0.85 mi23395+6313726+4313726+4321934(Top 82%)12797(Top 84%)12797(Top 900%)
25.2M25.20 mi0.35 mi23425-3013740-1413740-1424689(Top 93%)14131(Top 93%)14131(Top 994%)
Finish26.22 mi1.02 mi23406+1913719+2113719+2122766(Top 86%)13212(Top 87%)13212(Top 929%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23946

Males

14057

M55-59

14057

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24129

Males

14148

M55-59

14148

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23946

Males

14057

M55-59

14057

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23973

Males

14062

M55-59

14062

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

23148

Males

13688

M55-59

13688

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23229

Males

13698

M55-59

13698

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23475

Males

13732

M55-59

13732

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22599

Males

13278

M55-59

13278

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20377

Males

12228

M55-59

12228

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

23311

Males

13520

M55-59

13520

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21387

Males

12638

M55-59

12638

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

23940

Males

13782

M55-59

13782

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21934

Males

12797

M55-59

12797

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24689

Males

14131

M55-59

14131

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22766

Males

13212

M55-59

13212

Passing Analysis

Category:
Athletes Passed
1313
Passed By
720
Net Change
+593
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23999
5K → 10K163240-77#23999#24076
10K → 15K143113+30#24076#24046
15K → 20K12097+23#24046#24023
20K → Half546+48#24023#23975
Half → 25K17218+154#23975#23821
25K → 30K13473+61#23821#23760
30K → 20M11415+99#23760#23661
20M → 21M1404+136#23661#23525
21M → 35K3024+6#23525#23519
35K → 23M1049+95#23519#23424
23M → 24M1852-34#23424#23458
24M → 40K729+63#23458#23395
40K → 25.2M636-30#23395#23425
25.2M → Finish4324+19#23425#23406
TOTALS1313720+593
📊

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