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BOSTON MARATHON 2023

Sam Walker

Bib: 6231•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 21%
Division (M18-39)
#0 / 5285
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:18
Rank: #5174
Start → 5K
21:18 | 6:51/mi
10K· 6.21 mi
42:14
Rank: #4930 (+244)
5K → 10K
20:56 | 6:44/mi
15K· 9.32 mi
1:03:04
Rank: #4656 (+274)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:23:51
Rank: #4320 (+336)
15K → 20K
20:47 | 6:41/mi
Half· 13.11 mi
1:28:27
Rank: #4339 (-19)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:45
Rank: #4154 (+185)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:05:56
Rank: #3905 (+249)
25K → 30K
21:11 | 6:49/mi
20M
2:15:11
Rank: #3764 (+141)
30K → 20M
9:15 | 6:48/mi
21M
2:22:12
Rank: #3628 (+136)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:27:11
Rank: #3601 (+27)
21M → 35K
4:59 | 6:40/mi
23M
2:35:42
Rank: #3485 (+116)
35K → 23M
8:31 | 6:48/mi
24M
2:42:22
Rank: #3447 (+38)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:48:11
Rank: #3390 (+57)
24M → 40K
5:49 | 6:48/mi
25.2M
2:50:42
Rank: #3370 (+20)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:57:26
Rank: #3312 (+58)
25.2M → Finish
6:44 | 6:36/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:27
Pace6:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:59
Pace6:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3821:186:5121:18
6:51
-
10K
6.21 mi10:45:3442:146:4820:56
6:44
-0:07
15K
9.32 mi11:06:241:03:046:4620:50
6:42
-0:02
20K
12.43 mi11:27:111:23:516:4520:47
6:41
-0:01
Half
13.11 mi11:31:471:28:276:454:36
6:45
+0:04
25K
15.53 mi11:48:051:44:456:4516:18
6:43
-0:02
30K
18.64 mi12:09:162:05:566:4521:11
6:49
+0:06
20M
20.00 mi12:18:312:15:116:469:15
6:48
-0:01
21M
21.00 mi12:25:322:22:126:467:01
7:01
+0:13
35K
21.75 mi12:30:312:27:116:464:59
6:40
-0:21
23M
23.00 mi12:39:022:35:426:468:31
6:48
+0:08
24M
24.00 mi12:45:422:42:226:466:40
6:40
-0:08
40K
24.85 mi12:51:312:48:116:465:49
6:48
+0:08
25.2M
25.20 mi12:54:022:50:426:462:31
7:18
+0:30
Finish
26.22 mi13:00:462:57:266:466:44
6:36
-0:42

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

6:36 /mi

Average Pace

6:46 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:55

99% of race

Time at Steady Pace

2:31

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:24:3821:186:5121:18
6:51
#5174
10K
6.21 mi10:45:3442:146:4820:56
6:44
#4930
15K
9.32 mi11:06:241:03:046:4620:50
6:42
#4656
20K
12.43 mi11:27:111:23:516:4520:47
6:41
#4320
Half
13.11 mi11:31:471:28:276:454:36
6:45
#4339
25K
15.53 mi11:48:051:44:456:4516:18
6:43
#4154
30K
18.64 mi12:09:162:05:566:4521:11
6:49
#3905
20M
20.00 mi12:18:312:15:116:469:15
6:48
#3764
21M
21.00 mi12:25:322:22:126:467:01
7:01
#3628
35K
21.75 mi12:30:312:27:116:464:59
6:40
#3601
23M
23.00 mi12:39:022:35:426:468:31
6:48
#3485
24M
24.00 mi12:45:422:42:226:466:40
6:40
#3447
40K
24.85 mi12:51:312:48:116:465:49
6:48
#3390
25.2M
25.20 mi12:54:022:50:426:462:31
7:18
#3370
Finish
26.22 mi13:00:462:57:266:466:44
6:36
#3312
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5174479747974169(Top 16%)3911(Top 26%)3911(Top 74%)
10K6.21 mi3.10 mi4930+2444574+2234574+2234693(Top 18%)4366(Top 29%)4366(Top 83%)
15K9.32 mi3.11 mi4656+2744341+2334341+2334169(Top 16%)3911(Top 26%)3911(Top 74%)
20K12.43 mi3.11 mi4320+3364046+2954046+2953488(Top 13%)3302(Top 22%)3302(Top 62%)
Half13.11 mi0.68 mi4339-194062-164062-164654(Top 17%)4316(Top 28%)4316(Top 82%)
25K15.53 mi2.42 mi4154+1853894+1683894+1683536(Top 13%)3341(Top 22%)3341(Top 63%)
30K18.64 mi3.11 mi3905+2493681+2133681+2133109(Top 12%)2934(Top 19%)2934(Top 56%)
20M20.00 mi1.36 mi3764+1413552+1293552+1292869(Top 11%)2704(Top 18%)2704(Top 51%)
21M21.00 mi1.00 mi3628+1363430+1223430+1222230(Top 8%)2108(Top 14%)2108(Top 40%)
35K21.75 mi0.75 mi3601+273404+263404+263337(Top 13%)3107(Top 20%)3107(Top 59%)
23M23.00 mi1.25 mi3485+1163294+1103294+1102680(Top 10%)2513(Top 17%)2513(Top 48%)
24M24.00 mi1.00 mi3447+383258+363258+362928(Top 11%)2720(Top 18%)2720(Top 51%)
40K24.85 mi0.85 mi3390+573203+553203+552843(Top 11%)2617(Top 17%)2617(Top 50%)
25.2M25.20 mi0.35 mi3370+203183+203183+202932(Top 11%)2687(Top 18%)2687(Top 51%)
Finish26.22 mi1.02 mi3312+583131+523131+523016(Top 11%)2725(Top 18%)2725(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4169

Males

3911

M18-39

3911

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4693

Males

4366

M18-39

4366

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4169

Males

3911

M18-39

3911

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3488

Males

3302

M18-39

3302

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4654

Males

4316

M18-39

4316

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3536

Males

3341

M18-39

3341

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3109

Males

2934

M18-39

2934

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2869

Males

2704

M18-39

2704

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2230

Males

2108

M18-39

2108

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3337

Males

3107

M18-39

3107

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2680

Males

2513

M18-39

2513

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2928

Males

2720

M18-39

2720

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2843

Males

2617

M18-39

2617

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2932

Males

2687

M18-39

2687

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3016

Males

2725

M18-39

2725

Passing Analysis

Category:
Athletes Passed
2164
Passed By
302
Net Change
+1862
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5174
5K → 10K34197+244#5174#4930
10K → 15K29521+274#4930#4656
15K → 20K3437+336#4656#4320
20K → Half1332-19#4320#4339
Half → 25K19813+185#4339#4154
25K → 30K26516+249#4154#3905
30K → 20M1476+141#3905#3764
20M → 21M1437+136#3764#3628
21M → 35K4821+27#3628#3601
35K → 23M12913+116#3601#3485
23M → 24M5820+38#3485#3447
24M → 40K6811+57#3447#3390
40K → 25.2M3414+20#3390#3370
25.2M → Finish8224+58#3370#3312
TOTALS2164302+1862
📊

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