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BOSTON MARATHON 2023

Isaac Leigh

Bib: 779•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:53
Rank: #835
Start → 5K
18:53 | 6:05/mi
10K· 6.21 mi
37:34
Rank: #824 (+11)
5K → 10K
18:41 | 6:01/mi
15K· 9.32 mi
56:37
Rank: #881 (-57)
10K → 15K
19:03 | 6:08/mi
20K· 12.43 mi
1:16:01
Rank: #954 (-73)
15K → 20K
19:24 | 6:15/mi
Half· 13.11 mi
1:20:11
Rank: #958 (-4)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:37:19
Rank: #1330 (-372)
Half → 25K
17:08 | 7:04/mi
30K· 18.64 mi
1:57:47
Rank: #1409 (-79)
25K → 30K
20:28 | 6:35/mi
20M
2:06:49
Rank: #1444 (-35)
30K → 20M
9:02 | 6:39/mi
21M
2:13:43
Rank: #1449 (-5)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:18:38
Rank: #1484 (-35)
21M → 35K
4:55 | 6:34/mi
23M
2:27:04
Rank: #1499 (-15)
35K → 23M
8:26 | 6:44/mi
24M
2:33:42
Rank: #1528 (-29)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:39:26
Rank: #1535 (-7)
24M → 40K
5:44 | 6:42/mi
25.2M
2:41:53
Rank: #1543 (-8)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:48:34
Rank: #1552 (-9)
25.2M → Finish
6:41 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:11
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:28:23
Pace6:45 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5818:536:0518:53
6:05
-
10K
6.21 mi10:37:3937:346:0318:41
6:01
-0:04
15K
9.32 mi10:56:4256:376:0419:03
6:08
+0:07
20K
12.43 mi11:16:061:16:016:0719:24
6:15
+0:07
Half
13.11 mi11:20:161:20:116:074:10
6:06
-0:09
25K
15.53 mi11:37:241:37:196:1617:08
7:04
+0:58
30K
18.64 mi11:57:521:57:476:1920:28
6:35
-0:29
20M
20.00 mi12:06:542:06:496:209:02
6:39
+0:04
21M
21.00 mi12:13:482:13:436:226:54
6:54
+0:15
35K
21.75 mi12:18:432:18:386:224:55
6:34
-0:20
23M
23.00 mi12:27:092:27:046:248:26
6:44
+0:10
24M
24.00 mi12:33:472:33:426:246:38
6:38
-0:06
40K
24.85 mi12:39:312:39:266:255:44
6:42
+0:04
25.2M
25.20 mi12:41:582:41:536:252:27
7:06
+0:24
Finish
26.22 mi12:48:392:48:346:266:41
6:34
-0:32

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

6:01 /mi

Average Pace

6:26 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:15

67% of race

Time at Steady Pace

53:52

32% of race

Time at Slower Pace

2:27

1% of race

Average Pace: 6:26 /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 mi10:18:5818:536:0518:53
6:05
#835
10K
6.21 mi10:37:3937:346:0318:41
6:01
#824
15K
9.32 mi10:56:4256:376:0419:03
6:08
#881
20K
12.43 mi11:16:061:16:016:0719:24
6:15
#954
Half
13.11 mi11:20:161:20:116:074:10
6:06
#958
25K
15.53 mi11:37:241:37:196:1617:08
7:04
#1330
30K
18.64 mi11:57:521:57:476:1920:28
6:35
#1409
20M
20.00 mi12:06:542:06:496:209:02
6:39
#1444
21M
21.00 mi12:13:482:13:436:226:54
6:54
#1449
35K
21.75 mi12:18:432:18:386:224:55
6:34
#1484
23M
23.00 mi12:27:092:27:046:248:26
6:44
#1499
24M
24.00 mi12:33:472:33:426:246:38
6:38
#1528
40K
24.85 mi12:39:312:39:266:255:44
6:42
#1535
25.2M
25.20 mi12:41:582:41:536:252:27
7:06
#1543
Finish
26.22 mi12:48:392:48:346:266:41
6:34
#1552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8357857851053(Top 4%)1000(Top 7%)1000(Top 19%)
10K6.21 mi3.10 mi824+11777+8777+8834(Top 3%)788(Top 5%)788(Top 15%)
15K9.32 mi3.11 mi881-57831-54831-541053(Top 4%)1000(Top 7%)1000(Top 19%)
20K12.43 mi3.11 mi954-73905-74905-741193(Top 4%)1140(Top 8%)1140(Top 22%)
Half13.11 mi0.68 mi958-4908-3908-31061(Top 4%)1013(Top 7%)1013(Top 19%)
25K15.53 mi2.42 mi1330-3721269-3611269-3615913(Top 22%)5378(Top 35%)5378(Top 102%)
30K18.64 mi3.11 mi1409-791346-771346-771900(Top 7%)1818(Top 12%)1818(Top 34%)
20M20.00 mi1.36 mi1444-351380-341380-342039(Top 8%)1943(Top 13%)1943(Top 37%)
21M21.00 mi1.00 mi1449-51385-51385-51751(Top 7%)1664(Top 11%)1664(Top 31%)
35K21.75 mi0.75 mi1484-351418-331418-332774(Top 10%)2601(Top 17%)2601(Top 49%)
23M23.00 mi1.25 mi1499-151431-131431-132307(Top 9%)2168(Top 14%)2168(Top 41%)
24M24.00 mi1.00 mi1528-291459-281459-282702(Top 10%)2511(Top 17%)2511(Top 48%)
40K24.85 mi0.85 mi1535-71465-61465-62344(Top 9%)2174(Top 14%)2174(Top 41%)
25.2M25.20 mi0.35 mi1543-81474-91474-92075(Top 8%)1931(Top 13%)1931(Top 37%)
Finish26.22 mi1.02 mi1552-91484-101484-102733(Top 10%)2491(Top 16%)2491(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1053

Males

1000

M18-39

1000

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

834

Males

788

M18-39

788

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1053

Males

1000

M18-39

1000

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1193

Males

1140

M18-39

1140

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1061

Males

1013

M18-39

1013

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5913

Males

5378

M18-39

5378

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1900

Males

1818

M18-39

1818

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2039

Males

1943

M18-39

1943

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1751

Males

1664

M18-39

1664

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2774

Males

2601

M18-39

2601

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2307

Males

2168

M18-39

2168

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2702

Males

2511

M18-39

2511

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2344

Males

2174

M18-39

2174

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2075

Males

1931

M18-39

1931

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2733

Males

2491

M18-39

2491

Passing Analysis

Category:
Athletes Passed
222
Passed By
939
Net Change
-717
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#835
5K → 10K4938+11#835#824
10K → 15K865-57#824#881
15K → 20K1588-73#881#954
20K → Half37-4#954#958
Half → 25K0372-372#958#1330
25K → 30K29108-79#1330#1409
30K → 20M843-35#1409#1444
20M → 21M2227-5#1444#1449
21M → 35K439-35#1449#1484
35K → 23M1934-15#1484#1499
23M → 24M1544-29#1499#1528
24M → 40K2633-7#1528#1535
40K → 25.2M816-8#1535#1543
25.2M → Finish1625-9#1543#1552
TOTALS222939-717
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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