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BOSTON MARATHON 2023

David Satterthwaite

Bib: 22418•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:57/mi
27:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
55:19
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:22:56
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:50:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:56:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:57/mi
2:18:37
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:47:02
↑ 181↓ 1480.2%
20M
9:17/mi
2:59:39
↑ 64↓ 500.2%
21M
9:59/mi
3:09:38
↑ 106↓ 241.6%
35K· 21.75 mi
9:27/mi
3:16:42
↑ 17↓ 861.7%
23M
9:50/mi
3:29:01
↑ 23↓ 630.6%
24M
9:54/mi
3:38:55
↓ 821.3%
40K· 24.85 mi
10:37/mi
3:48:00
↓ 200.3%
25.2M
11:21/mi
3:51:55
↑ 13↓ 160.2%
Finish· 26.22 mi
10:26/mi
4:02:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:54
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:05:39
Pace9:35 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:4527:478:5727:47
8:57
-
10K
6.21 mi11:51:1755:198:5427:32
8:52
-0:05
15K
9.32 mi12:18:541:22:568:5427:37
8:53
+0:01
20K
12.43 mi12:46:511:50:538:5527:57
9:00
+0:07
Half
13.11 mi12:52:521:56:548:556:01
8:49
-0:11
25K
15.53 mi13:14:352:18:378:5521:43
8:57
+0:08
30K
18.64 mi13:43:002:47:028:5828:25
9:09
+0:12
20M
20.00 mi13:55:372:59:398:5912:37
9:17
+0:08
21M
21.00 mi14:05:363:09:389:029:59
9:59
+0:42
35K
21.75 mi14:12:403:16:429:037:04
9:27
-0:32
23M
23.00 mi14:24:593:29:019:0512:19
9:50
+0:23
24M
24.00 mi14:34:533:38:559:079:54
9:54
+0:04
40K
24.85 mi14:43:583:48:009:109:05
10:37
+0:43
25.2M
25.20 mi14:47:533:51:559:123:55
11:21
+0:44
Finish
26.22 mi14:58:314:02:339:1510:38
10:26
-0:55

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

8:49 /mi

Average Pace

9:15 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:10

25% of race

Time at Steady Pace

2:05:33

52% of race

Time at Slower Pace

55:50

23% of race

Average Pace: 9:15 /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 mi11:23:4527:478:5727:47
8:57
#20176
10K
6.21 mi11:51:1755:198:5427:32
8:52
#20199
15K
9.32 mi12:18:541:22:568:5427:37
8:53
#20107
20K
12.43 mi12:46:511:50:538:5527:57
9:00
#19975
Half
13.11 mi12:52:521:56:548:556:01
8:49
#19949
25K
15.53 mi13:14:352:18:378:5521:43
8:57
#19735
30K
18.64 mi13:43:002:47:028:5828:25
9:09
#19404
20M
20.00 mi13:55:372:59:398:5912:37
9:17
#19279
21M
21.00 mi14:05:363:09:389:029:59
9:59
#19187
35K
21.75 mi14:12:403:16:429:037:04
9:27
#19219
23M
23.00 mi14:24:593:29:019:0512:19
9:50
#19246
24M
24.00 mi14:34:533:38:559:079:54
9:54
#19328
40K
24.85 mi14:43:583:48:009:109:05
10:37
#19474
25.2M
25.20 mi14:47:533:51:559:123:55
11:21
#19524
Finish
26.22 mi14:58:314:02:339:1510:38
10:26
#19693
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20176122291222919980(Top 75%)12286(Top 81%)12286(Top 1107%)
10K6.21 mi3.10 mi20199-2312309-8012309-8020228(Top 76%)12372(Top 82%)12372(Top 1115%)
15K9.32 mi3.11 mi20107+9212289+2012289+2019980(Top 75%)12286(Top 81%)12286(Top 1107%)
20K12.43 mi3.11 mi19975+13212242+4712242+4719676(Top 74%)12170(Top 80%)12170(Top 1096%)
Half13.11 mi0.68 mi19949+2612234+812234+819570(Top 74%)12133(Top 80%)12133(Top 1093%)
25K15.53 mi2.42 mi19735+21412149+8512149+8518742(Top 70%)11739(Top 77%)11739(Top 1058%)
30K18.64 mi3.11 mi19404+33112012+13712012+13717905(Top 67%)11294(Top 74%)11294(Top 1017%)
20M20.00 mi1.36 mi19279+12511939+7311939+7317946(Top 67%)11217(Top 74%)11217(Top 1011%)
21M21.00 mi1.00 mi19187+9211890+4911890+4917963(Top 67%)11209(Top 74%)11209(Top 1010%)
35K21.75 mi0.75 mi19219-3211900-1011900-1019686(Top 74%)11916(Top 79%)11916(Top 1074%)
23M23.00 mi1.25 mi19246-2711904-411904-419524(Top 73%)11808(Top 78%)11808(Top 1064%)
24M24.00 mi1.00 mi19328-8211937-3311937-3320494(Top 77%)12211(Top 80%)12211(Top 1100%)
40K24.85 mi0.85 mi19474-14611978-4111978-4121502(Top 81%)12581(Top 83%)12581(Top 1133%)
25.2M25.20 mi0.35 mi19524-5011996-1811996-1821219(Top 80%)12485(Top 82%)12485(Top 1125%)
Finish26.22 mi1.02 mi19693-16912059-6312059-6322863(Top 86%)13257(Top 87%)13257(Top 1194%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19980

Males

12286

M60-64

12286

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20228

Males

12372

M60-64

12372

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19980

Males

12286

M60-64

12286

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19676

Males

12170

M60-64

12170

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19570

Males

12133

M60-64

12133

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18742

Males

11739

M60-64

11739

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17905

Males

11294

M60-64

11294

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

17946

Males

11217

M60-64

11217

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17963

Males

11209

M60-64

11209

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19686

Males

11916

M60-64

11916

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19524

Males

11808

M60-64

11808

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20494

Males

12211

M60-64

12211

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21502

Males

12581

M60-64

12581

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21219

Males

12485

M60-64

12485

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22863

Males

13257

M60-64

13257

Passing Analysis

Category:
Athletes Passed
1862
Passed By
1379
Net Change
+483
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20176
5K → 10K302325-23#20176#20199
10K → 15K226134+92#20199#20107
15K → 20K235103+132#20107#19975
20K → Half4620+26#19975#19949
Half → 25K24531+214#19949#19735
25K → 30K36332+331#19735#19404
30K → 20M15025+125#19404#19279
20M → 21M12230+92#19279#19187
21M → 35K3264-32#19187#19219
35K → 23M6895-27#19219#19246
23M → 24M37119-82#19246#19328
24M → 40K20166-146#19328#19474
40K → 25.2M454-50#19474#19524
25.2M → Finish12181-169#19524#19693
TOTALS18621379+483
📊

Passing Visuals

Category:
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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