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BOSTON MARATHON 2023

David Sanders

Bib: 6602•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 28%
Masters (Masters Men)
#0 / 9891
Top 14%
Division (M40-44)
#0 / 2241
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:26
Rank: #5539
Start → 5K
21:26 | 6:54/mi
10K· 6.21 mi
42:08
Rank: #4799 (+740)
5K → 10K
20:42 | 6:40/mi
15K· 9.32 mi
1:03:00
Rank: #4597 (+202)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:24:06
Rank: #4521 (+76)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:28:40
Rank: #4496 (+25)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:08
Rank: #4388 (+108)
Half → 25K
16:28 | 6:47/mi
30K· 18.64 mi
2:07:10
Rank: #4503 (-115)
25K → 30K
22:02 | 7:06/mi
20M
2:16:43
Rank: #4472 (+31)
30K → 20M
9:33 | 7:02/mi
21M
2:24:08
Rank: #4439 (+33)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:29:15
Rank: #4421 (+18)
21M → 35K
5:07 | 6:50/mi
23M
2:38:13
Rank: #4443 (-22)
35K → 23M
8:58 | 7:10/mi
24M
2:45:13
Rank: #4449 (-6)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:51:21
Rank: #4446 (+3)
24M → 40K
6:08 | 7:10/mi
25.2M
2:54:02
Rank: #4442 (+4)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:01:39
Rank: #4547 (-105)
25.2M → Finish
7:37 | 7:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:40
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:32:59
Pace7:06 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5921:266:5421:26
6:54
-
10K
6.21 mi10:45:4142:086:4720:42
6:40
-0:14
15K
9.32 mi11:06:331:03:006:4620:52
6:43
+0:03
20K
12.43 mi11:27:391:24:066:4621:06
6:47
+0:04
Half
13.11 mi11:32:131:28:406:464:34
6:42
-0:05
25K
15.53 mi11:48:411:45:086:4616:28
6:47
+0:05
30K
18.64 mi12:10:432:07:106:4922:02
7:06
+0:19
20M
20.00 mi12:20:162:16:436:509:33
7:02
-0:04
21M
21.00 mi12:27:412:24:086:527:25
7:25
+0:23
35K
21.75 mi12:32:482:29:156:525:07
6:50
-0:35
23M
23.00 mi12:41:462:38:136:538:58
7:10
+0:20
24M
24.00 mi12:48:462:45:136:537:00
7:00
-0:10
40K
24.85 mi12:54:542:51:216:546:08
7:10
+0:10
25.2M
25.20 mi12:57:352:54:026:542:41
7:47
+0:37
Finish
26.22 mi13:05:123:01:396:567:37
7:28
-0:19

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

6:40 /mi

Average Pace

6:56 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:56

90% of race

Time at Steady Pace

17:43

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:56 /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 mi10:24:5921:266:5421:26
6:54
#5539
10K
6.21 mi10:45:4142:086:4720:42
6:40
#4799
15K
9.32 mi11:06:331:03:006:4620:52
6:43
#4597
20K
12.43 mi11:27:391:24:066:4621:06
6:47
#4521
Half
13.11 mi11:32:131:28:406:464:34
6:42
#4496
25K
15.53 mi11:48:411:45:086:4616:28
6:47
#4388
30K
18.64 mi12:10:432:07:106:4922:02
7:06
#4503
20M
20.00 mi12:20:162:16:436:509:33
7:02
#4472
21M
21.00 mi12:27:412:24:086:527:25
7:25
#4439
35K
21.75 mi12:32:482:29:156:525:07
6:50
#4421
23M
23.00 mi12:41:462:38:136:538:58
7:10
#4443
24M
24.00 mi12:48:462:45:136:537:00
7:00
#4449
40K
24.85 mi12:54:542:51:216:546:08
7:10
#4446
25.2M
25.20 mi12:57:352:54:026:542:41
7:47
#4442
Finish
26.22 mi13:05:123:01:396:567:37
7:28
#4547
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5539510351034289(Top 16%)4019(Top 26%)4019(Top 179%)
10K6.21 mi3.10 mi4799+7404462+6414462+6413988(Top 15%)3754(Top 25%)3754(Top 168%)
15K9.32 mi3.11 mi4597+2024292+1704292+1704289(Top 16%)4019(Top 26%)4019(Top 179%)
20K12.43 mi3.11 mi4521+764222+704222+704370(Top 16%)4080(Top 27%)4080(Top 182%)
Half13.11 mi0.68 mi4496+254204+184204+184303(Top 16%)4027(Top 27%)4027(Top 180%)
25K15.53 mi2.42 mi4388+1084106+984106+984086(Top 15%)3832(Top 25%)3832(Top 171%)
30K18.64 mi3.11 mi4503-1154206-1004206-1004873(Top 18%)4485(Top 30%)4485(Top 200%)
20M20.00 mi1.36 mi4472+314174+324174+324207(Top 16%)3886(Top 26%)3886(Top 173%)
21M21.00 mi1.00 mi4439+334145+294145+294195(Top 16%)3847(Top 25%)3847(Top 172%)
35K21.75 mi0.75 mi4421+184123+224123+224440(Top 17%)4058(Top 27%)4058(Top 181%)
23M23.00 mi1.25 mi4443-224145-224145-224598(Top 17%)4157(Top 27%)4157(Top 185%)
24M24.00 mi1.00 mi4449-64152-74152-74664(Top 18%)4178(Top 28%)4178(Top 186%)
40K24.85 mi0.85 mi4446+34148+44148+44729(Top 18%)4156(Top 27%)4156(Top 185%)
25.2M25.20 mi0.35 mi4442+44142+64142+65229(Top 20%)4409(Top 29%)4409(Top 197%)
Finish26.22 mi1.02 mi4547-1054224-824224-828309(Top 31%)6325(Top 42%)6325(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4289

Males

4019

M40-44

4019

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

3988

Males

3754

M40-44

3754

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4289

Males

4019

M40-44

4019

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4370

Males

4080

M40-44

4080

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4303

Males

4027

M40-44

4027

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4086

Males

3832

M40-44

3832

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4873

Males

4485

M40-44

4485

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4207

Males

3886

M40-44

3886

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4195

Males

3847

M40-44

3847

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4440

Males

4058

M40-44

4058

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4598

Males

4157

M40-44

4157

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4664

Males

4178

M40-44

4178

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4729

Males

4156

M40-44

4156

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5229

Males

4409

M40-44

4409

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8309

Males

6325

M40-44

6325

Passing Analysis

Category:
Athletes Passed
1804
Passed By
812
Net Change
+992
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5539
5K → 10K76222+740#5539#4799
10K → 15K23836+202#4799#4597
15K → 20K14569+76#4597#4521
20K → Half3914+25#4521#4496
Half → 25K13729+108#4496#4388
25K → 30K83198-115#4388#4503
30K → 20M7645+31#4503#4472
20M → 21M7441+33#4472#4439
21M → 35K5234+18#4439#4421
35K → 23M7193-22#4421#4443
23M → 24M4046-6#4443#4449
24M → 40K4845+3#4449#4446
40K → 25.2M1915+4#4446#4442
25.2M → Finish20125-105#4442#4547
TOTALS1804812+992
📊

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