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BOSTON MARATHON 2023

David Walter

Bib: 17393•M

AB

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
8:21/mi
25:55
↑ 97↓ 3451.5%
10K· 6.21 mi
8:24/mi
52:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:18:22
↑ 67↓ 78
20K· 12.43 mi
8:47/mi
1:45:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:51:37
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:14:28
↑ 66↓ 880.2%
30K· 18.64 mi
10:26/mi
2:46:53
↑ 181↓ 1480.2%
20M
10:37/mi
3:01:19
↑ 64↓ 500.2%
21M
11:02/mi
3:12:21
↑ 106↓ 241.6%
35K· 21.75 mi
10:07/mi
3:19:55
↑ 17↓ 861.7%
23M
10:54/mi
3:33:34
↑ 23↓ 630.6%
24M
9:43/mi
3:43:17
↓ 821.3%
40K· 24.85 mi
10:49/mi
3:52:32
↓ 200.3%
25.2M
12:17/mi
3:56:46
↑ 13↓ 160.2%
Finish· 26.22 mi
10:03/mi
4:07:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:37
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:15:23
Pace10:20 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5425:558:2125:55
8:21
-
10K
6.21 mi11:42:5952:008:2226:05
8:24
+0:03
15K
9.32 mi12:09:211:18:228:2426:22
8:29
+0:05
20K
12.43 mi12:36:371:45:388:3027:16
8:47
+0:18
Half
13.11 mi12:42:361:51:378:315:59
8:46
-0:01
25K
15.53 mi13:05:272:14:288:3922:51
9:25
+0:39
30K
18.64 mi13:37:522:46:538:5732:25
10:26
+1:01
20M
20.00 mi13:52:183:01:199:0414:26
10:37
+0:11
21M
21.00 mi14:03:203:12:219:1011:02
11:02
+0:25
35K
21.75 mi14:10:543:19:559:127:34
10:07
-0:55
23M
23.00 mi14:24:333:33:349:1713:39
10:54
+0:47
24M
24.00 mi14:34:163:43:179:189:43
9:43
-1:11
40K
24.85 mi14:43:313:52:329:219:15
10:49
+1:06
25.2M
25.20 mi14:47:453:56:469:244:14
12:17
+1:28
Finish
26.22 mi14:57:594:07:009:2610:14
10:03
-2:14

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

8:21 /mi

Average Pace

9:26 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:28

54% of race

Time at Steady Pace

59:56

24% of race

Time at Slower Pace

52:36

21% of race

Average Pace: 9:25 /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 mi11:16:5425:558:2125:55
8:21
#16429
10K
6.21 mi11:42:5952:008:2226:05
8:24
#16977
15K
9.32 mi12:09:211:18:228:2426:22
8:29
#17242
20K
12.43 mi12:36:371:45:388:3027:16
8:47
#17563
Half
13.11 mi12:42:361:51:378:315:59
8:46
#17652
25K
15.53 mi13:05:272:14:288:3922:51
9:25
#18308
30K
18.64 mi13:37:522:46:538:5732:25
10:26
#19366
20M
20.00 mi13:52:183:01:199:0414:26
10:37
#19673
21M
21.00 mi14:03:203:12:219:1011:02
11:02
#19765
35K
21.75 mi14:10:543:19:559:127:34
10:07
#19865
23M
23.00 mi14:24:333:33:349:1713:39
10:54
#20086
24M
24.00 mi14:34:163:43:179:189:43
9:43
#20086
40K
24.85 mi14:43:313:52:329:219:15
10:49
#20170
25.2M
25.20 mi14:47:453:56:469:244:14
12:17
#20224
Finish
26.22 mi14:57:594:07:009:2610:14
10:03
#20268
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16429108591085917712(Top 67%)11353(Top 75%)11353(Top 1023%)
10K6.21 mi3.10 mi16977-54811060-20111060-20117557(Top 66%)11324(Top 75%)11324(Top 1020%)
15K9.32 mi3.11 mi17242-26511162-10211162-10217712(Top 67%)11353(Top 75%)11353(Top 1023%)
20K12.43 mi3.11 mi17563-32111287-12511287-12518545(Top 70%)11709(Top 77%)11709(Top 1055%)
Half13.11 mi0.68 mi17652-8911317-3011317-3019332(Top 73%)12038(Top 79%)12038(Top 1085%)
25K15.53 mi2.42 mi18308-65611576-25911576-25920577(Top 77%)12522(Top 83%)12522(Top 1128%)
30K18.64 mi3.11 mi19366-105811990-41411990-41422075(Top 83%)13105(Top 86%)13105(Top 1181%)
20M20.00 mi1.36 mi19673-30712111-12112111-12121981(Top 83%)12990(Top 86%)12990(Top 1170%)
21M21.00 mi1.00 mi19765-9212142-3112142-3120892(Top 78%)12471(Top 82%)12471(Top 1124%)
35K21.75 mi0.75 mi19865-10012167-2512167-2521571(Top 81%)12738(Top 84%)12738(Top 1148%)
23M23.00 mi1.25 mi20086-22112246-7912246-7922145(Top 83%)12980(Top 86%)12980(Top 1169%)
24M24.00 mi1.00 mi2008612240+612240+619945(Top 75%)11979(Top 79%)11979(Top 1079%)
40K24.85 mi0.85 mi20170-8412268-2812268-2821960(Top 82%)12807(Top 84%)12807(Top 1154%)
25.2M25.20 mi0.35 mi20224-5412283-1512283-1522916(Top 86%)13274(Top 87%)13274(Top 1196%)
Finish26.22 mi1.02 mi20268-4412294-1112294-1121867(Top 82%)12795(Top 84%)12795(Top 1153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17712

Males

11353

M60-64

11353

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17557

Males

11324

M60-64

11324

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17712

Males

11353

M60-64

11353

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18545

Males

11709

M60-64

11709

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19332

Males

12038

M60-64

12038

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20577

Males

12522

M60-64

12522

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22075

Males

13105

M60-64

13105

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

21981

Males

12990

M60-64

12990

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20892

Males

12471

M60-64

12471

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21571

Males

12738

M60-64

12738

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22145

Males

12980

M60-64

12980

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19945

Males

11979

M60-64

11979

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21960

Males

12807

M60-64

12807

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22916

Males

13274

M60-64

13274

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21867

Males

12795

M60-64

12795

Passing Analysis

Category:
Athletes Passed
596
Passed By
4435
Net Change
-3839
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16429
5K → 10K118666-548#16429#16977
10K → 15K103368-265#16977#17242
15K → 20K89410-321#17242#17563
20K → Half13102-89#17563#17652
Half → 25K22678-656#17652#18308
25K → 30K211079-1058#18308#19366
30K → 20M24331-307#19366#19673
20M → 21M61153-92#19673#19765
21M → 35K26126-100#19765#19865
35K → 23M28249-221#19865#20086
23M → 24M43430#20086#20086
24M → 40K19103-84#20086#20170
40K → 25.2M458-54#20170#20224
25.2M → Finish2569-44#20224#20268
TOTALS5964435-3839
📊

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