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BOSTON MARATHON 2023

John Crowley

Bib: 32020•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
9:56/mi
30:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:11/mi
59:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:27:15
↑ 67↓ 78
20K· 12.43 mi
10:37/mi
2:00:13
↑ 106↓ 860.1%
Half· 13.11 mi
10:21/mi
2:07:17
↑ 19↓ 370.5%
25K· 15.53 mi
10:57/mi
2:33:51
↑ 66↓ 880.2%
30K· 18.64 mi
12:14/mi
3:11:52
↑ 181↓ 1480.2%
20M
13:33/mi
3:30:17
↑ 64↓ 500.2%
21M
13:33/mi
3:43:50
↑ 106↓ 241.6%
35K· 21.75 mi
10:50/mi
3:51:56
↑ 17↓ 861.7%
23M
12:36/mi
4:07:42
↑ 23↓ 630.6%
24M
13:08/mi
4:20:50
↓ 821.3%
40K· 24.85 mi
12:07/mi
4:31:12
↓ 200.3%
25.2M
13:58/mi
4:36:01
↑ 13↓ 160.2%
Finish· 26.22 mi
12:09/mi
4:48:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:17
Pace9:43 /mi
2nd Half
Distance13.11 mi
Time2:41:07
Pace12:17 /mi
📊Positive Split: 26.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5430:529:5630:52
9:56
-
10K
6.21 mi12:20:2559:239:3328:31
9:11
-0:45
15K
9.32 mi12:48:171:27:159:2227:52
8:58
-0:13
20K
12.43 mi13:21:152:00:139:4032:58
10:37
+1:39
Half
13.11 mi13:28:192:07:179:437:04
10:21
-0:16
25K
15.53 mi13:54:532:33:519:5426:34
10:57
+0:36
30K
18.64 mi14:32:543:11:5210:1838:01
12:14
+1:17
20M
20.00 mi14:51:193:30:1710:3118:25
13:33
+1:19
21M
21.00 mi15:04:523:43:5010:4013:33
13:33
0:00
35K
21.75 mi15:12:583:51:5610:408:06
10:50
-2:43
23M
23.00 mi15:28:444:07:4210:4615:46
12:36
+1:46
24M
24.00 mi15:41:524:20:5010:5213:08
13:08
+0:32
40K
24.85 mi15:52:144:31:1210:5510:22
12:07
-1:01
25.2M
25.20 mi15:57:034:36:0110:574:49
13:58
+1:51
Finish
26.22 mi16:09:264:48:2411:0012:23
12:09
-1:49

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

8:58 /mi

Average Pace

11:00 /mi

Slowest Pace

13:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:57

56% of race

Time at Steady Pace

1:16:32

27% of race

Time at Slower Pace

49:55

17% of race

Average Pace: 11:00 /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 mi11:51:5430:529:5630:52
9:56
#23289
10K
6.21 mi12:20:2559:239:3328:31
9:11
#22483
15K
9.32 mi12:48:171:27:159:2227:52
8:58
#21870
20K
12.43 mi13:21:152:00:139:4032:58
10:37
#22614
Half
13.11 mi13:28:192:07:179:437:04
10:21
#22704
25K
15.53 mi13:54:532:33:519:5426:34
10:57
#22962
30K
18.64 mi14:32:543:11:5210:1838:01
12:14
#23428
20M
20.00 mi14:51:193:30:1710:3118:25
13:33
#23674
21M
21.00 mi15:04:523:43:5010:4013:33
13:33
#23778
35K
21.75 mi15:12:583:51:5610:408:06
10:50
#23761
23M
23.00 mi15:28:444:07:4210:4615:46
12:36
#23847
24M
24.00 mi15:41:524:20:5010:5213:08
13:08
#23977
40K
24.85 mi15:52:144:31:1210:5510:22
12:07
#23986
25.2M
25.20 mi15:57:034:36:0110:574:49
13:58
#24008
Finish
26.22 mi16:09:264:48:2411:0012:23
12:09
#24075
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi23289137261372620361(Top 76%)12463(Top 82%)12463(Top 556%)
10K6.21 mi3.10 mi22483+80613368+35813368+35821554(Top 81%)12959(Top 85%)12959(Top 578%)
15K9.32 mi3.11 mi21870+61313086+28213086+28220361(Top 76%)12463(Top 82%)12463(Top 556%)
20K12.43 mi3.11 mi22614-74413454-36813454-36824024(Top 90%)14082(Top 93%)14082(Top 628%)
Half13.11 mi0.68 mi22704-9013488-3413488-3423923(Top 90%)14031(Top 92%)14031(Top 626%)
25K15.53 mi2.42 mi22962-25813599-11113599-11123897(Top 90%)13975(Top 92%)13975(Top 624%)
30K18.64 mi3.11 mi23428-46613804-20513804-20524744(Top 93%)14300(Top 94%)14300(Top 638%)
20M20.00 mi1.36 mi23674-24613901-9713901-9725581(Top 96%)14659(Top 97%)14659(Top 654%)
21M21.00 mi1.00 mi23778-10413940-3913940-3924630(Top 93%)14188(Top 93%)14188(Top 633%)
35K21.75 mi0.75 mi23761+1713930+1013930+1022978(Top 86%)13377(Top 88%)13377(Top 597%)
23M23.00 mi1.25 mi23847-8613957-2713957-2724675(Top 93%)14179(Top 93%)14179(Top 633%)
24M24.00 mi1.00 mi23977-13014004-4714004-4725574(Top 96%)14589(Top 96%)14589(Top 651%)
40K24.85 mi0.85 mi23986-913999+513999+524043(Top 90%)13824(Top 91%)13824(Top 617%)
25.2M25.20 mi0.35 mi24008-2214008-914008-924968(Top 94%)14262(Top 94%)14262(Top 636%)
Finish26.22 mi1.02 mi24075-6714028-2014028-2025374(Top 95%)14495(Top 96%)14495(Top 647%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20361

Males

12463

M40-44

12463

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21554

Males

12959

M40-44

12959

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20361

Males

12463

M40-44

12463

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

24024

Males

14082

M40-44

14082

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

23923

Males

14031

M40-44

14031

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23897

Males

13975

M40-44

13975

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24744

Males

14300

M40-44

14300

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25581

Males

14659

M40-44

14659

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24630

Males

14188

M40-44

14188

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22978

Males

13377

M40-44

13377

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24675

Males

14179

M40-44

14179

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25574

Males

14589

M40-44

14589

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

24043

Males

13824

M40-44

13824

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24968

Males

14262

M40-44

14262

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25374

Males

14495

M40-44

14495

Passing Analysis

Category:
Athletes Passed
1662
Passed By
2448
Net Change
-786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23289
5K → 10K83125+806#23289#22483
10K → 15K6207+613#22483#21870
15K → 20K18762-744#21870#22614
20K → Half393-90#22614#22704
Half → 25K37295-258#22704#22962
25K → 30K23489-466#22962#23428
30K → 20M9255-246#23428#23674
20M → 21M19123-104#23674#23778
21M → 35K3417+17#23778#23761
35K → 23M22108-86#23761#23847
23M → 24M4134-130#23847#23977
24M → 40K2837-9#23977#23986
40K → 25.2M325-22#23986#24008
25.2M → Finish1178-67#24008#24075
TOTALS16622448-786
📊

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