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BOSTON MARATHON 2023

John Kane

Bib: 5074•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M55-59)
#0 / 1422
Top 0.7%
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
6:41/mi
20:45
↑ 97↓ 3451.5%
10K· 6.21 mi
6:38/mi
41:23
↑ 79↓ 1380.4%
15K· 9.32 mi
6:36/mi
1:01:53
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:22:33
↑ 106↓ 860.1%
Half· 13.11 mi
6:30/mi
1:26:59
↑ 19↓ 370.5%
25K· 15.53 mi
6:38/mi
1:43:03
↑ 66↓ 880.2%
30K· 18.64 mi
6:44/mi
2:03:58
↑ 181↓ 1480.2%
20M
6:50/mi
2:13:16
↑ 64↓ 500.2%
21M
6:50/mi
2:20:06
↑ 106↓ 241.6%
35K· 21.75 mi
6:25/mi
2:24:54
↑ 17↓ 861.7%
23M
6:35/mi
2:33:09
↑ 23↓ 630.6%
24M
6:20/mi
2:39:29
↓ 821.3%
40K· 24.85 mi
6:32/mi
2:45:04
↓ 200.3%
25.2M
6:58/mi
2:47:28
↑ 13↓ 160.2%
Finish· 26.22 mi
6:11/mi
2:53:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:26:59
Pace6:38 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:47
Pace6:37 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4620:456:4120:45
6:41
-
10K
6.21 mi10:44:2441:236:4020:38
6:38
-0:03
15K
9.32 mi11:04:541:01:536:3820:30
6:36
-0:02
20K
12.43 mi11:25:341:22:336:3920:40
6:39
+0:03
Half
13.11 mi11:30:001:26:596:384:26
6:30
-0:09
25K
15.53 mi11:46:041:43:036:3816:04
6:38
+0:08
30K
18.64 mi12:06:592:03:586:3920:55
6:44
+0:06
20M
20.00 mi12:16:172:13:166:409:18
6:50
+0:06
21M
21.00 mi12:23:072:20:066:406:50
6:50
0:00
35K
21.75 mi12:27:552:24:546:404:48
6:25
-0:25
23M
23.00 mi12:36:102:33:096:408:15
6:35
+0:10
24M
24.00 mi12:42:302:39:296:396:20
6:20
-0:15
40K
24.85 mi12:48:052:45:046:385:35
6:32
+0:12
25.2M
25.20 mi12:50:292:47:286:392:24
6:58
+0:26
Finish
26.22 mi12:56:472:53:466:386:18
6:11
-0:47

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

6:11 /mi

Average Pace

6:38 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:14

89% of race

Time at Steady Pace

18:32

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:38 /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 mi10:23:4620:456:4120:45
6:41
#3456
10K
6.21 mi10:44:2441:236:4020:38
6:38
#3609
15K
9.32 mi11:04:541:01:536:3820:30
6:36
#3470
20K
12.43 mi11:25:341:22:336:3920:40
6:39
#3396
Half
13.11 mi11:30:001:26:596:384:26
6:30
#3350
25K
15.53 mi11:46:041:43:036:3816:04
6:38
#3234
30K
18.64 mi12:06:592:03:586:3920:55
6:44
#3039
20M
20.00 mi12:16:172:13:166:409:18
6:50
#3019
21M
21.00 mi12:23:072:20:066:406:50
6:50
#2890
35K
21.75 mi12:27:552:24:546:404:48
6:25
#2836
23M
23.00 mi12:36:102:33:096:408:15
6:35
#2718
24M
24.00 mi12:42:302:39:296:396:20
6:20
#2601
40K
24.85 mi12:48:052:45:046:385:35
6:32
#2543
25.2M
25.20 mi12:50:292:47:286:392:24
6:58
#2505
Finish
26.22 mi12:56:472:53:466:386:18
6:11
#2420
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi3456325732573260(Top 12%)3095(Top 20%)3095(Top 218%)
10K6.21 mi3.10 mi3609-1533404-1473404-1473785(Top 14%)3569(Top 24%)3569(Top 251%)
15K9.32 mi3.11 mi3470+1393287+1173287+1173260(Top 12%)3095(Top 20%)3095(Top 218%)
20K12.43 mi3.11 mi3396+743222+653222+653182(Top 12%)3023(Top 20%)3023(Top 213%)
Half13.11 mi0.68 mi3350+463183+393183+392749(Top 10%)2633(Top 17%)2633(Top 185%)
25K15.53 mi2.42 mi3234+1163082+1013082+1012845(Top 11%)2716(Top 18%)2716(Top 191%)
30K18.64 mi3.11 mi3039+1952896+1862896+1862566(Top 10%)2440(Top 16%)2440(Top 172%)
20M20.00 mi1.36 mi3019+202876+202876+203054(Top 11%)2868(Top 19%)2868(Top 202%)
21M21.00 mi1.00 mi2890+1292758+1182758+1181551(Top 6%)1475(Top 10%)1475(Top 104%)
35K21.75 mi0.75 mi2836+542710+482710+482043(Top 8%)1941(Top 13%)1941(Top 136%)
23M23.00 mi1.25 mi2718+1182596+1142596+1141739(Top 7%)1649(Top 11%)1649(Top 116%)
24M24.00 mi1.00 mi2601+1172486+1102486+1101464(Top 5%)1387(Top 9%)1387(Top 98%)
40K24.85 mi0.85 mi2543+582428+582428+581659(Top 6%)1562(Top 10%)1562(Top 110%)
25.2M25.20 mi0.35 mi2505+382391+372391+371638(Top 6%)1544(Top 10%)1544(Top 109%)
Finish26.22 mi1.02 mi2420+852311+802311+801224(Top 5%)1165(Top 8%)1165(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21story building
+97ft-345ft

Overall

3260

Males

3095

M55-59

3095

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3785

Males

3569

M55-59

3569

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+67ft-78ft

Overall

3260

Males

3095

M55-59

3095

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3182

Males

3023

M55-59

3023

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2749

Males

2633

M55-59

2633

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

2845

Males

2716

M55-59

2716

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2566

Males

2440

M55-59

2440

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3054

Males

2868

M55-59

2868

20M→21M

20.0 - 21.0 mi

Top 6%
×8story building
+106ft-24ft

Overall

1551

Males

1475

M55-59

1475

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2043

Males

1941

M55-59

1941

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1739

Males

1649

M55-59

1649

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1464

Males

1387

M55-59

1387

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1659

Males

1562

M55-59

1562

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1638

Males

1544

M55-59

1544

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1224

Males

1165

M55-59

1165

Passing Analysis

Category:
Athletes Passed
1528
Passed By
492
Net Change
+1036
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3456
5K → 10K141294-153#3456#3609
10K → 15K18041+139#3609#3470
15K → 20K11945+74#3470#3396
20K → Half493+46#3396#3350
Half → 25K13115+116#3350#3234
25K → 30K21217+195#3234#3039
30K → 20M5232+20#3039#3019
20M → 21M1323+129#3019#2890
21M → 35K628+54#2890#2836
35K → 23M1268+118#2836#2718
23M → 24M1236+117#2718#2601
24M → 40K668+58#2601#2543
40K → 25.2M413+38#2543#2505
25.2M → Finish949+85#2505#2420
TOTALS1528492+1036
📊

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