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BOSTON MARATHON 2023

Tom Stephenson

Bib: 733•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:21
Rank: #539
Start → 5K
18:21 | 5:54/mi
10K· 6.21 mi
36:41
Rank: #563 (-24)
5K → 10K
18:20 | 5:54/mi
15K· 9.32 mi
55:26
Rank: #616 (-53)
10K → 15K
18:45 | 6:02/mi
20K· 12.43 mi
1:14:36
Rank: #675 (-59)
15K → 20K
19:10 | 6:10/mi
Half· 13.11 mi
1:18:47
Rank: #684 (-9)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:33:55
Rank: #732 (-48)
Half → 25K
15:08 | 6:14/mi
30K· 18.64 mi
1:54:02
Rank: #819 (-87)
25K → 30K
20:07 | 6:28/mi
20M
2:02:57
Rank: #847 (-28)
30K → 20M
8:55 | 6:34/mi
21M
2:10:10
Rank: #908 (-61)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:14:54
Rank: #927 (-19)
21M → 35K
4:44 | 6:20/mi
23M
2:23:29
Rank: #970 (-43)
35K → 23M
8:35 | 6:51/mi
24M
2:30:10
Rank: #1008 (-38)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:36:34
Rank: #1124 (-116)
24M → 40K
6:24 | 7:29/mi
25.2M
2:39:17
Rank: #1157 (-33)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
2:46:43
Rank: #1285 (-128)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:47
Pace6:01 /mi
2nd Half
Distance13.11 mi
Time1:27:56
Pace6:42 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3318:215:5418:21
5:54
-
10K
6.21 mi10:36:5336:415:5418:20
5:54
0:00
15K
9.32 mi10:55:3855:265:5718:45
6:02
+0:08
20K
12.43 mi11:14:481:14:366:0019:10
6:10
+0:08
Half
13.11 mi11:18:591:18:476:014:11
6:08
-0:02
25K
15.53 mi11:34:071:33:556:0315:08
6:14
+0:06
30K
18.64 mi11:54:141:54:026:0720:07
6:28
+0:14
20M
20.00 mi12:03:092:02:576:098:55
6:34
+0:06
21M
21.00 mi12:10:222:10:106:127:13
7:13
+0:39
35K
21.75 mi12:15:062:14:546:124:44
6:20
-0:53
23M
23.00 mi12:23:412:23:296:148:35
6:51
+0:31
24M
24.00 mi12:30:222:30:106:156:41
6:41
-0:10
40K
24.85 mi12:36:462:36:346:186:24
7:29
+0:48
25.2M
25.20 mi12:39:292:39:176:192:43
7:53
+0:24
Finish
26.22 mi12:46:552:46:436:227:26
7:18
-0:35

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

5:54 /mi

Average Pace

6:22 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:47

47% of race

Time at Steady Pace

55:35

33% of race

Time at Slower Pace

32:21

19% of race

Average Pace: 6:22 /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 mi10:18:3318:215:5418:21
5:54
#539
10K
6.21 mi10:36:5336:415:5418:20
5:54
#563
15K
9.32 mi10:55:3855:265:5718:45
6:02
#616
20K
12.43 mi11:14:481:14:366:0019:10
6:10
#675
Half
13.11 mi11:18:591:18:476:014:11
6:08
#684
25K
15.53 mi11:34:071:33:556:0315:08
6:14
#732
30K
18.64 mi11:54:141:54:026:0720:07
6:28
#819
20M
20.00 mi12:03:092:02:576:098:55
6:34
#847
21M
21.00 mi12:10:222:10:106:127:13
7:13
#908
35K
21.75 mi12:15:062:14:546:124:44
6:20
#927
23M
23.00 mi12:23:412:23:296:148:35
6:51
#970
24M
24.00 mi12:30:222:30:106:156:41
6:41
#1008
40K
24.85 mi12:36:462:36:346:186:24
7:29
#1124
25.2M
25.20 mi12:39:292:39:176:192:43
7:53
#1157
Finish
26.22 mi12:46:552:46:436:227:26
7:18
#1285
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi539497497798(Top 3%)752(Top 5%)752(Top 34%)
10K6.21 mi3.10 mi563-24521-24521-24598(Top 2%)555(Top 4%)555(Top 25%)
15K9.32 mi3.11 mi616-53573-52573-52798(Top 3%)752(Top 5%)752(Top 34%)
20K12.43 mi3.11 mi675-59632-59632-59971(Top 4%)923(Top 6%)923(Top 41%)
Half13.11 mi0.68 mi684-9641-9641-91124(Top 4%)1073(Top 7%)1073(Top 48%)
25K15.53 mi2.42 mi732-48688-47688-471121(Top 4%)1068(Top 7%)1068(Top 48%)
30K18.64 mi3.11 mi819-87776-88776-881472(Top 6%)1408(Top 9%)1408(Top 63%)
20M20.00 mi1.36 mi847-28802-26802-261674(Top 6%)1597(Top 11%)1597(Top 71%)
21M21.00 mi1.00 mi908-61861-59861-593162(Top 12%)2948(Top 19%)2948(Top 132%)
35K21.75 mi0.75 mi927-19880-19880-191646(Top 6%)1564(Top 10%)1564(Top 70%)
23M23.00 mi1.25 mi970-43923-43923-432939(Top 11%)2740(Top 18%)2740(Top 122%)
24M24.00 mi1.00 mi1008-38958-35958-352977(Top 11%)2761(Top 18%)2761(Top 123%)
40K24.85 mi0.85 mi1124-1161072-1141072-1146575(Top 25%)5363(Top 35%)5363(Top 239%)
25.2M25.20 mi0.35 mi1157-331103-311103-315675(Top 21%)4695(Top 31%)4695(Top 210%)
Finish26.22 mi1.02 mi1285-1281224-1211224-1217032(Top 26%)5571(Top 37%)5571(Top 249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

798

Males

752

M40-44

752

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

598

Males

555

M40-44

555

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

798

Males

752

M40-44

752

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

971

Males

923

M40-44

923

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1124

Males

1073

M40-44

1073

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1121

Males

1068

M40-44

1068

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1472

Males

1408

M40-44

1408

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1674

Males

1597

M40-44

1597

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3162

Males

2948

M40-44

2948

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1646

Males

1564

M40-44

1564

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2939

Males

2740

M40-44

2740

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2977

Males

2761

M40-44

2761

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6575

Males

5363

M40-44

5363

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5675

Males

4695

M40-44

4695

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7032

Males

5571

M40-44

5571

Passing Analysis

Category:
Athletes Passed
84
Passed By
830
Net Change
-746
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#539
5K → 10K2246-24#539#563
10K → 15K558-53#563#616
15K → 20K564-59#616#675
20K → Half110-9#675#684
Half → 25K1159-48#684#732
25K → 30K693-87#732#819
30K → 20M836-28#819#847
20M → 21M465-61#847#908
21M → 35K625-19#908#927
35K → 23M447-43#927#970
23M → 24M644-38#970#1008
24M → 40K3119-116#1008#1124
40K → 25.2M235-33#1124#1157
25.2M → Finish1129-128#1157#1285
TOTALS84830-746
📊

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