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BOSTON MARATHON 2023

Zachary Kavanaugh

Bib: 31151•M

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:10/mi
28:29
↑ 97↓ 3451.5%
10K· 6.21 mi
8:35/mi
55:09
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:22:46
↑ 67↓ 78
20K· 12.43 mi
8:30/mi
1:49:12
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:55:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:16:01
↑ 66↓ 880.2%
30K· 18.64 mi
9:22/mi
2:45:08
↑ 181↓ 1480.2%
20M
9:48/mi
2:58:27
↑ 64↓ 500.2%
21M
9:37/mi
3:08:04
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:14:32
↑ 17↓ 861.7%
23M
8:54/mi
3:25:40
↑ 23↓ 630.6%
24M
8:50/mi
3:34:30
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:42:12
↓ 200.3%
25.2M
9:52/mi
3:45:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:43/mi
3:54:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:00
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time1:59:29
Pace9:07 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4628:299:1028:29
9:10
-
10K
6.21 mi12:14:2655:098:5326:40
8:35
-0:35
15K
9.32 mi12:42:031:22:468:5327:37
8:53
+0:18
20K
12.43 mi13:08:291:49:128:4726:26
8:30
-0:23
Half
13.11 mi13:14:171:55:008:465:48
8:30
0:00
25K
15.53 mi13:35:182:16:018:4521:01
8:40
+0:10
30K
18.64 mi14:04:252:45:088:5229:07
9:22
+0:42
20M
20.00 mi14:17:442:58:278:5513:19
9:48
+0:26
21M
21.00 mi14:27:213:08:048:579:37
9:37
-0:11
35K
21.75 mi14:33:493:14:328:576:28
8:39
-0:58
23M
23.00 mi14:44:573:25:408:5711:08
8:54
+0:15
24M
24.00 mi14:53:473:34:308:568:50
8:50
-0:04
40K
24.85 mi15:01:293:42:128:567:42
9:00
+0:10
25.2M
25.20 mi15:04:533:45:368:573:24
9:52
+0:52
Finish
26.22 mi15:13:463:54:298:578:53
8:43
-1:09

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

8:30 /mi

Average Pace

8:57 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:02

76% of race

Time at Steady Pace

55:27

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:57 /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 mi11:47:4628:299:1028:29
9:10
#21105
10K
6.21 mi12:14:2655:098:5326:40
8:35
#20054
15K
9.32 mi12:42:031:22:468:5327:37
8:53
#20033
20K
12.43 mi13:08:291:49:128:4726:26
8:30
#19264
Half
13.11 mi13:14:171:55:008:465:48
8:30
#19184
25K
15.53 mi13:35:182:16:018:4521:01
8:40
#18876
30K
18.64 mi14:04:252:45:088:5229:07
9:22
#18876
20M
20.00 mi14:17:442:58:278:5513:19
9:48
#18983
21M
21.00 mi14:27:213:08:048:579:37
9:37
#18832
35K
21.75 mi14:33:493:14:328:576:28
8:39
#18719
23M
23.00 mi14:44:573:25:408:5711:08
8:54
#18530
24M
24.00 mi14:53:473:34:308:568:50
8:50
#18437
40K
24.85 mi15:01:293:42:128:567:42
9:00
#18348
25.2M
25.20 mi15:04:533:45:368:573:24
9:52
#18326
Finish
26.22 mi15:13:463:54:298:578:53
8:43
#18273
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21105126571265719974(Top 75%)12280(Top 81%)12280(Top 232%)
10K6.21 mi3.10 mi20054+105112238+41912238+41918750(Top 70%)11798(Top 78%)11798(Top 223%)
15K9.32 mi3.11 mi20033+2112252-1412252-1419974(Top 75%)12280(Top 81%)12280(Top 232%)
20K12.43 mi3.11 mi19264+76911964+28811964+28816904(Top 63%)11009(Top 73%)11009(Top 208%)
Half13.11 mi0.68 mi19184+8011939+2511939+2517695(Top 66%)11383(Top 75%)11383(Top 215%)
25K15.53 mi2.42 mi18876+30811806+13311806+13317205(Top 65%)11069(Top 73%)11069(Top 209%)
30K18.64 mi3.11 mi1887611791+1511791+1518898(Top 71%)11735(Top 77%)11735(Top 222%)
20M20.00 mi1.36 mi18983-10711813-2211813-2219838(Top 75%)12047(Top 79%)12047(Top 228%)
21M21.00 mi1.00 mi18832+15111738+7511738+7516490(Top 62%)10567(Top 70%)10567(Top 200%)
35K21.75 mi0.75 mi18719+11311689+4911689+4916084(Top 60%)10334(Top 68%)10334(Top 196%)
23M23.00 mi1.25 mi18530+18911596+9311596+9315495(Top 58%)10035(Top 66%)10035(Top 190%)
24M24.00 mi1.00 mi18437+9311542+5411542+5416382(Top 62%)10351(Top 68%)10351(Top 196%)
40K24.85 mi0.85 mi18348+8911489+5311489+5316155(Top 61%)10199(Top 67%)10199(Top 193%)
25.2M25.20 mi0.35 mi18326+2211477+1211477+1216777(Top 63%)10463(Top 69%)10463(Top 198%)
Finish26.22 mi1.02 mi18273+5311445+3211445+3216566(Top 62%)10418(Top 69%)10418(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19974

Males

12280

M18-39

12280

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18750

Males

11798

M18-39

11798

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19974

Males

12280

M18-39

12280

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16904

Males

11009

M18-39

11009

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

17695

Males

11383

M18-39

11383

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17205

Males

11069

M18-39

11069

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18898

Males

11735

M18-39

11735

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19838

Males

12047

M18-39

12047

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16490

Males

10567

M18-39

10567

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16084

Males

10334

M18-39

10334

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15495

Males

10035

M18-39

10035

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16382

Males

10351

M18-39

10351

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16155

Males

10199

M18-39

10199

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16777

Males

10463

M18-39

10463

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16566

Males

10418

M18-39

10418

Passing Analysis

Category:
Athletes Passed
3483
Passed By
651
Net Change
+2832
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21105
5K → 10K109645+1051#21105#20054
10K → 15K190169+21#20054#20033
15K → 20K7712+769#20033#19264
20K → Half833+80#19264#19184
Half → 25K3146+308#19184#18876
25K → 30K1681680#18876#18876
30K → 20M48155-107#18876#18983
20M → 21M16716+151#18983#18832
21M → 35K1218+113#18832#18719
35K → 23M20011+189#18719#18530
23M → 24M10714+93#18530#18437
24M → 40K10112+89#18437#18348
40K → 25.2M308+22#18348#18326
25.2M → Finish8734+53#18326#18273
TOTALS3483651+2832
📊

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