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BOSTON MARATHON 2023

Sam Stalcup

Bib: 5457•M

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0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M40-44)
#0 / 2241
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:08
Rank: #4673
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
41:57
Rank: #4479 (+194)
5K → 10K
20:49 | 6:42/mi
15K· 9.32 mi
1:02:42
Rank: #4277 (+202)
10K → 15K
20:45 | 6:41/mi
20K· 12.43 mi
1:23:38
Rank: #4161 (+116)
15K → 20K
20:56 | 6:44/mi
Half· 13.11 mi
1:28:10
Rank: #4131 (+30)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:26
Rank: #3983 (+148)
Half → 25K
16:16 | 6:43/mi
30K· 18.64 mi
2:05:35
Rank: #3744 (+239)
25K → 30K
21:09 | 6:48/mi
20M
2:14:47
Rank: #3606 (+138)
30K → 20M
9:12 | 6:46/mi
21M
2:21:53
Rank: #3505 (+101)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:26:40
Rank: #3385 (+120)
21M → 35K
4:47 | 6:24/mi
23M
2:34:38
Rank: #3146 (+239)
35K → 23M
7:58 | 6:22/mi
24M
2:40:49
Rank: #2974 (+172)
23M → 24M
6:11 | 6:11/mi
40K· 24.85 mi
2:46:10
Rank: #2815 (+159)
24M → 40K
5:21 | 6:15/mi
25.2M
2:48:32
Rank: #2764 (+51)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:54:44
Rank: #2631 (+133)
25.2M → Finish
6:12 | 6:05/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:26:34
Pace6:36 /mi
📊Negative Split: 1.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1521:086:4821:08
6:48
-
10K
6.21 mi10:45:0441:576:4520:49
6:42
-0:06
15K
9.32 mi11:05:491:02:426:4420:45
6:41
-0:01
20K
12.43 mi11:26:451:23:386:4420:56
6:44
+0:03
Half
13.11 mi11:31:171:28:106:444:32
6:39
-0:05
25K
15.53 mi11:47:331:44:266:4316:16
6:43
+0:04
30K
18.64 mi12:08:422:05:356:4421:09
6:48
+0:05
20M
20.00 mi12:17:542:14:476:449:12
6:46
-0:02
21M
21.00 mi12:25:002:21:536:457:06
7:06
+0:20
35K
21.75 mi12:29:472:26:406:454:47
6:24
-0:42
23M
23.00 mi12:37:452:34:386:437:58
6:22
-0:02
24M
24.00 mi12:43:562:40:496:426:11
6:11
-0:11
40K
24.85 mi12:49:172:46:106:415:21
6:15
+0:04
25.2M
25.20 mi12:51:392:48:326:412:22
6:52
+0:37
Finish
26.22 mi12:57:512:54:446:406:12
6:05
-0:47

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

6:40 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:46

32% of race

Time at Steady Pace

1:58:58

68% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:24:1521:086:4821:08
6:48
#4673
10K
6.21 mi10:45:0441:576:4520:49
6:42
#4479
15K
9.32 mi11:05:491:02:426:4420:45
6:41
#4277
20K
12.43 mi11:26:451:23:386:4420:56
6:44
#4161
Half
13.11 mi11:31:171:28:106:444:32
6:39
#4131
25K
15.53 mi11:47:331:44:266:4316:16
6:43
#3983
30K
18.64 mi12:08:422:05:356:4421:09
6:48
#3744
20M
20.00 mi12:17:542:14:476:449:12
6:46
#3606
21M
21.00 mi12:25:002:21:536:457:06
7:06
#3505
35K
21.75 mi12:29:472:26:406:454:47
6:24
#3385
23M
23.00 mi12:37:452:34:386:437:58
6:22
#3146
24M
24.00 mi12:43:562:40:496:426:11
6:11
#2974
40K
24.85 mi12:49:172:46:106:415:21
6:15
#2815
25.2M
25.20 mi12:51:392:48:326:412:22
6:52
#2764
Finish
26.22 mi12:57:512:54:446:406:12
6:05
#2631
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4673434743473900(Top 15%)3664(Top 24%)3664(Top 163%)
10K6.21 mi3.10 mi4479+1944186+1614186+1614307(Top 16%)4031(Top 27%)4031(Top 180%)
15K9.32 mi3.11 mi4277+2024005+1814005+1813900(Top 15%)3664(Top 24%)3664(Top 163%)
20K12.43 mi3.11 mi4161+1163904+1013904+1013846(Top 14%)3626(Top 24%)3626(Top 162%)
Half13.11 mi0.68 mi4131+303876+283876+283717(Top 14%)3501(Top 23%)3501(Top 156%)
25K15.53 mi2.42 mi3983+1483747+1293747+1293397(Top 13%)3218(Top 21%)3218(Top 144%)
30K18.64 mi3.11 mi3744+2393534+2133534+2133023(Top 11%)2856(Top 19%)2856(Top 127%)
20M20.00 mi1.36 mi3606+1383410+1243410+1242632(Top 10%)2489(Top 16%)2489(Top 111%)
21M21.00 mi1.00 mi3505+1013320+903320+902618(Top 10%)2464(Top 16%)2464(Top 110%)
35K21.75 mi0.75 mi3385+1203204+1163204+1161972(Top 7%)1876(Top 12%)1876(Top 84%)
23M23.00 mi1.25 mi3146+2392984+2202984+2201004(Top 4%)954(Top 6%)954(Top 43%)
24M24.00 mi1.00 mi2974+1722825+1592825+159990(Top 4%)939(Top 6%)939(Top 42%)
40K24.85 mi0.85 mi2815+1592676+1492676+149800(Top 3%)759(Top 5%)759(Top 34%)
25.2M25.20 mi0.35 mi2764+512626+502626+501353(Top 5%)1283(Top 8%)1283(Top 57%)
Finish26.22 mi1.02 mi2631+1332507+1192507+119952(Top 4%)910(Top 6%)910(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3900

Males

3664

M40-44

3664

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4307

Males

4031

M40-44

4031

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3900

Males

3664

M40-44

3664

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3846

Males

3626

M40-44

3626

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3717

Males

3501

M40-44

3501

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3397

Males

3218

M40-44

3218

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3023

Males

2856

M40-44

2856

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2632

Males

2489

M40-44

2489

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2618

Males

2464

M40-44

2464

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1972

Males

1876

M40-44

1876

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1004

Males

954

M40-44

954

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

990

Males

939

M40-44

939

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

800

Males

759

M40-44

759

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1353

Males

1283

M40-44

1283

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

952

Males

910

M40-44

910

Passing Analysis

Category:
Athletes Passed
2309
Passed By
267
Net Change
+2042
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4673
5K → 10K318124+194#4673#4479
10K → 15K24442+202#4479#4277
15K → 20K15539+116#4277#4161
20K → Half366+30#4161#4131
Half → 25K16517+148#4131#3983
25K → 30K25920+239#3983#3744
30K → 20M1424+138#3744#3606
20M → 21M11211+101#3606#3505
21M → 35K1233+120#3505#3385
35K → 23M2390+239#3385#3146
23M → 24M1731+172#3146#2974
24M → 40K1590+159#2974#2815
40K → 25.2M510+51#2815#2764
25.2M → Finish1330+133#2764#2631
TOTALS2309267+2042
📊

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