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BOSTON MARATHON 2023

Samuel Isaak

Bib: 4790•M

BC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Division (M18-39)
#0 / 5285
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:36
Rank: #3077
Start → 5K
20:36 | 6:38/mi
10K· 6.21 mi
40:24
Rank: #2499 (+578)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
1:00:16
Rank: #2359 (+140)
10K → 15K
19:52 | 6:24/mi
20K· 12.43 mi
1:20:30
Rank: #2335 (+24)
15K → 20K
20:14 | 6:31/mi
Half· 13.11 mi
1:24:56
Rank: #2352 (-17)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:40:46
Rank: #2347 (+5)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:01:44
Rank: #2378 (-31)
25K → 30K
20:58 | 6:45/mi
20M
2:10:40
Rank: #2307 (+71)
30K → 20M
8:56 | 6:34/mi
21M
2:17:20
Rank: #2196 (+111)
20M → 21M
6:40 | 6:40/mi
35K· 21.75 mi
2:21:53
Rank: #2134 (+62)
21M → 35K
4:33 | 6:05/mi
23M
2:29:42
Rank: #1978 (+156)
35K → 23M
7:49 | 6:15/mi
24M
2:35:52
Rank: #1899 (+79)
23M → 24M
6:10 | 6:10/mi
40K· 24.85 mi
2:41:15
Rank: #1846 (+53)
24M → 40K
5:23 | 6:18/mi
25.2M
2:43:35
Rank: #1820 (+26)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:49:50
Rank: #1754 (+66)
25.2M → Finish
6:15 | 6:08/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:56
Pace6:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:54
Pace6:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3020:366:3820:36
6:38
-
10K
6.21 mi10:42:1840:246:3019:48
6:22
-0:16
15K
9.32 mi11:02:101:00:166:2819:52
6:24
+0:02
20K
12.43 mi11:22:241:20:306:2920:14
6:31
+0:07
Half
13.11 mi11:26:501:24:566:294:26
6:30
-0:01
25K
15.53 mi11:42:401:40:466:2915:50
6:32
+0:02
30K
18.64 mi12:03:382:01:446:3220:58
6:45
+0:13
20M
20.00 mi12:12:342:10:406:328:56
6:34
-0:11
21M
21.00 mi12:19:142:17:206:326:40
6:40
+0:06
35K
21.75 mi12:23:472:21:536:314:33
6:05
-0:35
23M
23.00 mi12:31:362:29:426:317:49
6:15
+0:10
24M
24.00 mi12:37:462:35:526:306:10
6:10
-0:05
40K
24.85 mi12:43:092:41:156:295:23
6:18
+0:08
25.2M
25.20 mi12:45:292:43:356:292:20
6:46
+0:28
Finish
26.22 mi12:51:442:49:506:296:15
6:08
-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

6:05 /mi

Average Pace

6:29 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:32

86% of race

Time at Steady Pace

23:18

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:22:3020:366:3820:36
6:38
#3077
10K
6.21 mi10:42:1840:246:3019:48
6:22
#2499
15K
9.32 mi11:02:101:00:166:2819:52
6:24
#2359
20K
12.43 mi11:22:241:20:306:2920:14
6:31
#2335
Half
13.11 mi11:26:501:24:566:294:26
6:30
#2352
25K
15.53 mi11:42:401:40:466:2915:50
6:32
#2347
30K
18.64 mi12:03:382:01:446:3220:58
6:45
#2378
20M
20.00 mi12:12:342:10:406:328:56
6:34
#2307
21M
21.00 mi12:19:142:17:206:326:40
6:40
#2196
35K
21.75 mi12:23:472:21:536:314:33
6:05
#2134
23M
23.00 mi12:31:362:29:426:317:49
6:15
#1978
24M
24.00 mi12:37:462:35:526:306:10
6:10
#1899
40K
24.85 mi12:43:092:41:156:295:23
6:18
#1846
25.2M
25.20 mi12:45:292:43:356:292:20
6:46
#1820
Finish
26.22 mi12:51:442:49:506:296:15
6:08
#1754
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3077291329132064(Top 8%)1979(Top 13%)1979(Top 37%)
10K6.21 mi3.10 mi2499+5782382+5312382+5312094(Top 8%)2005(Top 13%)2005(Top 38%)
15K9.32 mi3.11 mi2359+1402258+1242258+1242064(Top 8%)1979(Top 13%)1979(Top 37%)
20K12.43 mi3.11 mi2335+242239+192239+192341(Top 9%)2243(Top 15%)2243(Top 42%)
Half13.11 mi0.68 mi2352-172255-162255-162715(Top 10%)2599(Top 17%)2599(Top 49%)
25K15.53 mi2.42 mi2347+52251+42251+42316(Top 9%)2218(Top 15%)2218(Top 42%)
30K18.64 mi3.11 mi2378-312279-282279-282665(Top 10%)2529(Top 17%)2529(Top 48%)
20M20.00 mi1.36 mi2307+712214+652214+651729(Top 6%)1649(Top 11%)1649(Top 31%)
21M21.00 mi1.00 mi2196+1112105+1092105+1091023(Top 4%)975(Top 6%)975(Top 18%)
35K21.75 mi0.75 mi2134+622045+602045+60897(Top 3%)854(Top 6%)854(Top 16%)
23M23.00 mi1.25 mi1978+1561896+1491896+149719(Top 3%)679(Top 4%)679(Top 13%)
24M24.00 mi1.00 mi1899+791818+781818+78931(Top 3%)882(Top 6%)882(Top 17%)
40K24.85 mi0.85 mi1846+531766+521766+52902(Top 3%)855(Top 6%)855(Top 16%)
25.2M25.20 mi0.35 mi1820+261741+251741+251086(Top 4%)1033(Top 7%)1033(Top 20%)
Finish26.22 mi1.02 mi1754+661675+661675+661089(Top 4%)1038(Top 7%)1038(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2064

Males

1979

M18-39

1979

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2094

Males

2005

M18-39

2005

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2064

Males

1979

M18-39

1979

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2341

Males

2243

M18-39

2243

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2715

Males

2599

M18-39

2599

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2316

Males

2218

M18-39

2218

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2665

Males

2529

M18-39

2529

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1729

Males

1649

M18-39

1649

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1023

Males

975

M18-39

975

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

897

Males

854

M18-39

854

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

719

Males

679

M18-39

679

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

931

Males

882

M18-39

882

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

902

Males

855

M18-39

855

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1086

Males

1033

M18-39

1033

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1089

Males

1038

M18-39

1038

Passing Analysis

Category:
Athletes Passed
1583
Passed By
260
Net Change
+1323
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3077
5K → 10K59113+578#3077#2499
10K → 15K16424+140#2499#2359
15K → 20K7046+24#2359#2335
20K → Half320-17#2335#2352
Half → 25K5247+5#2352#2347
25K → 30K5586-31#2347#2378
30K → 20M787+71#2378#2307
20M → 21M1132+111#2307#2196
21M → 35K620+62#2196#2134
35K → 23M1560+156#2134#1978
23M → 24M823+79#1978#1899
24M → 40K585+53#1899#1846
40K → 25.2M293+26#1846#1820
25.2M → Finish704+66#1820#1754
TOTALS1583260+1323
📊

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