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BOSTON MARATHON 2023

Martin Stam

Bib: 3219•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:16
Rank: #1138
Start → 5K
19:16 | 6:12/mi
10K· 6.21 mi
39:11
Rank: #1591 (-453)
5K → 10K
19:55 | 6:25/mi
15K· 9.32 mi
59:21
Rank: #1865 (-274)
10K → 15K
20:10 | 6:29/mi
20K· 12.43 mi
1:19:28
Rank: #1912 (-47)
15K → 20K
20:07 | 6:28/mi
Half· 13.11 mi
1:23:50
Rank: #1920 (-8)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:39:30
Rank: #1912 (+8)
Half → 25K
15:40 | 6:28/mi
30K· 18.64 mi
1:59:56
Rank: #1891 (+21)
25K → 30K
20:26 | 6:35/mi
20M
2:08:54
Rank: #1880 (+11)
30K → 20M
8:58 | 6:36/mi
21M
2:15:48
Rank: #1849 (+31)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:20:34
Rank: #1835 (+14)
21M → 35K
4:46 | 6:22/mi
23M
2:28:49
Rank: #1804 (+31)
35K → 23M
8:15 | 6:35/mi
24M
2:35:17
Rank: #1791 (+13)
23M → 24M
6:28 | 6:28/mi
40K· 24.85 mi
2:40:51
Rank: #1757 (+34)
24M → 40K
5:34 | 6:31/mi
25.2M
2:43:17
Rank: #1756 (+1)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:50:02
Rank: #1791 (-35)
25.2M → Finish
6:45 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:50
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:26:12
Pace6:35 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:44:1919:166:1219:16
6:12
-
10K
6.21 mi11:04:1439:116:1819:55
6:25
+0:13
15K
9.32 mi11:24:2459:216:2220:10
6:29
+0:04
20K
12.43 mi11:44:311:19:286:2420:07
6:28
-0:01
Half
13.11 mi11:48:531:23:506:244:22
6:24
-0:04
25K
15.53 mi12:04:331:39:306:2415:40
6:28
+0:04
30K
18.64 mi12:24:591:59:566:2620:26
6:35
+0:07
20M
20.00 mi12:33:572:08:546:278:58
6:36
+0:01
21M
21.00 mi12:40:512:15:486:286:54
6:54
+0:18
35K
21.75 mi12:45:372:20:346:284:46
6:22
-0:32
23M
23.00 mi12:53:522:28:496:288:15
6:35
+0:13
24M
24.00 mi13:00:202:35:176:286:28
6:28
-0:07
40K
24.85 mi13:05:542:40:516:285:34
6:31
+0:03
25.2M
25.20 mi13:08:202:43:176:292:26
7:03
+0:32
Finish
26.22 mi13:15:052:50:026:296:45
6:37
-0:26

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

6:12 /mi

Average Pace

6:29 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:42

95% of race

Time at Steady Pace

9:20

5% 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 mi10:44:1919:166:1219:16
6:12
#1138
10K
6.21 mi11:04:1439:116:1819:55
6:25
#1591
15K
9.32 mi11:24:2459:216:2220:10
6:29
#1865
20K
12.43 mi11:44:311:19:286:2420:07
6:28
#1912
Half
13.11 mi11:48:531:23:506:244:22
6:24
#1920
25K
15.53 mi12:04:331:39:306:2415:40
6:28
#1912
30K
18.64 mi12:24:591:59:566:2620:26
6:35
#1891
20M
20.00 mi12:33:572:08:546:278:58
6:36
#1880
21M
21.00 mi12:40:512:15:486:286:54
6:54
#1849
35K
21.75 mi12:45:372:20:346:284:46
6:22
#1835
23M
23.00 mi12:53:522:28:496:288:15
6:35
#1804
24M
24.00 mi13:00:202:35:176:286:28
6:28
#1791
40K
24.85 mi13:05:542:40:516:285:34
6:31
#1757
25.2M
25.20 mi13:08:202:43:176:292:26
7:03
#1756
Finish
26.22 mi13:15:052:50:026:296:45
6:37
#1791
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1138107610762575(Top 10%)2470(Top 16%)2470(Top 110%)
10K6.21 mi3.10 mi1591-4531518-4421518-4422289(Top 9%)2190(Top 14%)2190(Top 98%)
15K9.32 mi3.11 mi1865-2741784-2661784-2662575(Top 10%)2470(Top 16%)2470(Top 110%)
20K12.43 mi3.11 mi1912-471831-471831-472148(Top 8%)2060(Top 14%)2060(Top 92%)
Half13.11 mi0.68 mi1920-81839-81839-82192(Top 8%)2102(Top 14%)2102(Top 94%)
25K15.53 mi2.42 mi1912+81830+91830+91995(Top 7%)1910(Top 13%)1910(Top 85%)
30K18.64 mi3.11 mi1891+211810+201810+201859(Top 7%)1779(Top 12%)1779(Top 79%)
20M20.00 mi1.36 mi1880+111798+121798+121838(Top 7%)1751(Top 12%)1751(Top 78%)
21M21.00 mi1.00 mi1849+311769+291769+291755(Top 7%)1668(Top 11%)1668(Top 74%)
35K21.75 mi0.75 mi1835+141755+141755+141841(Top 7%)1747(Top 12%)1747(Top 78%)
23M23.00 mi1.25 mi1804+311725+301725+301729(Top 6%)1639(Top 11%)1639(Top 73%)
24M24.00 mi1.00 mi1791+131712+131712+131944(Top 7%)1825(Top 12%)1825(Top 81%)
40K24.85 mi0.85 mi1757+341679+331679+331560(Top 6%)1470(Top 10%)1470(Top 66%)
25.2M25.20 mi0.35 mi1756+11678+11678+11895(Top 7%)1778(Top 12%)1778(Top 79%)
Finish26.22 mi1.02 mi1791-351711-331711-333072(Top 12%)2767(Top 18%)2767(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2575

Males

2470

M40-44

2470

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2289

Males

2190

M40-44

2190

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2575

Males

2470

M40-44

2470

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2148

Males

2060

M40-44

2060

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2192

Males

2102

M40-44

2102

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1995

Males

1910

M40-44

1910

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1859

Males

1779

M40-44

1779

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1838

Males

1751

M40-44

1751

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1755

Males

1668

M40-44

1668

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1841

Males

1747

M40-44

1747

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1729

Males

1639

M40-44

1639

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1944

Males

1825

M40-44

1825

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1560

Males

1470

M40-44

1470

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1895

Males

1778

M40-44

1778

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3072

Males

2767

M40-44

2767

Passing Analysis

Category:
Athletes Passed
429
Passed By
1082
Net Change
-653
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1138
5K → 10K1454-453#1138#1591
10K → 15K9283-274#1591#1865
15K → 20K3885-47#1865#1912
20K → Half1018-8#1912#1920
Half → 25K4335+8#1920#1912
25K → 30K6746+21#1912#1891
30K → 20M3221+11#1891#1880
20M → 21M4514+31#1880#1849
21M → 35K2410+14#1849#1835
35K → 23M5221+31#1835#1804
23M → 24M3118+13#1804#1791
24M → 40K439+34#1791#1757
40K → 25.2M1413+1#1757#1756
25.2M → Finish2055-35#1756#1791
TOTALS4291082-653
📊

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