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BOSTON MARATHON 2023

Jack Leafe

Bib: 5594•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 21%
Division (M18-39)
#0 / 5285
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:56
Rank: #3996
Start → 5K
20:56 | 6:44/mi
10K· 6.21 mi
41:38
Rank: #3976 (+20)
5K → 10K
20:42 | 6:40/mi
15K· 9.32 mi
1:02:21
Rank: #3907 (+69)
10K → 15K
20:43 | 6:40/mi
20K· 12.43 mi
1:22:59
Rank: #3668 (+239)
15K → 20K
20:38 | 6:38/mi
Half· 13.11 mi
1:27:25
Rank: #3603 (+65)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:43:29
Rank: #3431 (+172)
Half → 25K
16:04 | 6:38/mi
30K· 18.64 mi
2:04:24
Rank: #3229 (+202)
25K → 30K
20:55 | 6:44/mi
20M
2:13:31
Rank: #3119 (+110)
30K → 20M
9:07 | 6:43/mi
21M
2:20:32
Rank: #3032 (+87)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:25:24
Rank: #2990 (+42)
21M → 35K
4:52 | 6:30/mi
23M
2:33:56
Rank: #2951 (+39)
35K → 23M
8:32 | 6:49/mi
24M
2:40:54
Rank: #3005 (-54)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
2:47:17
Rank: #3125 (-120)
24M → 40K
6:23 | 7:28/mi
25.2M
2:50:06
Rank: #3199 (-74)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:57:47
Rank: #3428 (-229)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:25
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:30:22
Pace6:54 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3120:566:4420:56
6:44
-
10K
6.21 mi10:44:1341:386:4220:42
6:40
-0:04
15K
9.32 mi11:04:561:02:216:4120:43
6:40
0:00
20K
12.43 mi11:25:341:22:596:4120:38
6:38
-0:02
Half
13.11 mi11:30:001:27:256:404:26
6:30
-0:08
25K
15.53 mi11:46:041:43:296:4016:04
6:38
+0:08
30K
18.64 mi12:06:592:04:246:4020:55
6:44
+0:06
20M
20.00 mi12:16:062:13:316:419:07
6:43
-0:01
21M
21.00 mi12:23:072:20:326:427:01
7:01
+0:18
35K
21.75 mi12:27:592:25:246:414:52
6:30
-0:31
23M
23.00 mi12:36:312:33:566:428:32
6:49
+0:19
24M
24.00 mi12:43:292:40:546:426:58
6:58
+0:09
40K
24.85 mi12:49:522:47:176:446:23
7:28
+0:30
25.2M
25.20 mi12:52:412:50:066:452:49
8:10
+0:42
Finish
26.22 mi13:00:222:57:476:477:41
7:32
-0:38

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

6:30 /mi

Average Pace

6:47 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:18

5% of race

Time at Steady Pace

2:17:37

77% of race

Time at Slower Pace

30:52

17% of race

Average Pace: 6:47 /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 mi10:23:3120:566:4420:56
6:44
#3996
10K
6.21 mi10:44:1341:386:4220:42
6:40
#3976
15K
9.32 mi11:04:561:02:216:4120:43
6:40
#3907
20K
12.43 mi11:25:341:22:596:4120:38
6:38
#3668
Half
13.11 mi11:30:001:27:256:404:26
6:30
#3603
25K
15.53 mi11:46:041:43:296:4016:04
6:38
#3431
30K
18.64 mi12:06:592:04:246:4020:55
6:44
#3229
20M
20.00 mi12:16:062:13:316:419:07
6:43
#3119
21M
21.00 mi12:23:072:20:326:427:01
7:01
#3032
35K
21.75 mi12:27:592:25:246:414:52
6:30
#2990
23M
23.00 mi12:36:312:33:566:428:32
6:49
#2951
24M
24.00 mi12:43:292:40:546:426:58
6:58
#3005
40K
24.85 mi12:49:522:47:176:446:23
7:28
#3125
25.2M
25.20 mi12:52:412:50:066:452:49
8:10
#3199
Finish
26.22 mi13:00:222:57:476:477:41
7:32
#3428
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3996374937493824(Top 14%)3595(Top 24%)3595(Top 68%)
10K6.21 mi3.10 mi3976+203740+93740+93975(Top 15%)3741(Top 25%)3741(Top 71%)
15K9.32 mi3.11 mi3907+693680+603680+603824(Top 14%)3595(Top 24%)3595(Top 68%)
20K12.43 mi3.11 mi3668+2393471+2093471+2093112(Top 12%)2959(Top 19%)2959(Top 56%)
Half13.11 mi0.68 mi3603+653411+603411+602815(Top 11%)2699(Top 18%)2699(Top 51%)
25K15.53 mi2.42 mi3431+1723258+1533258+1532883(Top 11%)2754(Top 18%)2754(Top 52%)
30K18.64 mi3.11 mi3229+2023073+1853073+1852585(Top 10%)2459(Top 16%)2459(Top 47%)
20M20.00 mi1.36 mi3119+1102970+1032970+1032332(Top 9%)2215(Top 15%)2215(Top 42%)
21M21.00 mi1.00 mi3032+872887+832887+832233(Top 8%)2111(Top 14%)2111(Top 40%)
35K21.75 mi0.75 mi2990+422847+402847+402462(Top 9%)2334(Top 15%)2334(Top 44%)
23M23.00 mi1.25 mi2951+392807+402807+402746(Top 10%)2572(Top 17%)2572(Top 49%)
24M24.00 mi1.00 mi3005-542853-462853-464470(Top 17%)4031(Top 27%)4031(Top 76%)
40K24.85 mi0.85 mi3125-1202961-1082961-1086443(Top 24%)5289(Top 35%)5289(Top 100%)
25.2M25.20 mi0.35 mi3199-743027-663027-667373(Top 28%)5773(Top 38%)5773(Top 109%)
Finish26.22 mi1.02 mi3428-2293231-2043231-2048793(Top 33%)6621(Top 44%)6621(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3824

Males

3595

M18-39

3595

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

3975

Males

3741

M18-39

3741

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3824

Males

3595

M18-39

3595

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3112

Males

2959

M18-39

2959

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2815

Males

2699

M18-39

2699

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2883

Males

2754

M18-39

2754

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2585

Males

2459

M18-39

2459

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2332

Males

2215

M18-39

2215

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2233

Males

2111

M18-39

2111

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2462

Males

2334

M18-39

2334

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2746

Males

2572

M18-39

2572

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4470

Males

4031

M18-39

4031

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6443

Males

5289

M18-39

5289

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7373

Males

5773

M18-39

5773

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8793

Males

6621

M18-39

6621

Passing Analysis

Category:
Athletes Passed
1506
Passed By
938
Net Change
+568
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3996
5K → 10K238218+20#3996#3976
10K → 15K15586+69#3976#3907
15K → 20K25516+239#3907#3668
20K → Half672+65#3668#3603
Half → 25K1819+172#3603#3431
25K → 30K21412+202#3431#3229
30K → 20M1188+110#3229#3119
20M → 21M10215+87#3119#3032
21M → 35K5311+42#3032#2990
35K → 23M7031+39#2990#2951
23M → 24M2478-54#2951#3005
24M → 40K18138-120#3005#3125
40K → 25.2M478-74#3125#3199
25.2M → Finish7236-229#3199#3428
TOTALS1506938+568
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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