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BOSTON MARATHON 2023

Kirk Waldron

Bib: 21331•M

CA

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
8:34/mi
26:38
↑ 97↓ 3451.5%
10K· 6.21 mi
8:29/mi
53:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:37/mi
1:19:46
↑ 67↓ 78
20K· 12.43 mi
8:46/mi
1:47:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:52:58
↑ 19↓ 370.5%
25K· 15.53 mi
9:11/mi
2:15:14
↑ 66↓ 880.2%
30K· 18.64 mi
10:19/mi
2:47:17
↑ 181↓ 1480.2%
20M
11:43/mi
3:03:13
↑ 64↓ 500.2%
21M
11:43/mi
3:14:56
↑ 106↓ 241.6%
35K· 21.75 mi
11:43/mi
3:23:42
↑ 17↓ 861.7%
23M
12:08/mi
3:38:53
↑ 23↓ 630.6%
24M
12:35/mi
3:51:27
↓ 821.3%
40K· 24.85 mi
12:35/mi
4:02:13
↓ 200.3%
25.2M
12:35/mi
4:06:33
↑ 13↓ 160.2%
Finish· 26.22 mi
12:35/mi
4:19:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:58
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:26:24
Pace11:10 /mi
📊Positive Split: 29.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5426:388:3426:38
8:34
-
10K
6.21 mi11:47:1653:008:3226:22
8:29
-0:05
15K
9.32 mi12:14:021:19:468:3326:46
8:37
+0:08
20K
12.43 mi12:41:171:47:018:3727:15
8:46
+0:09
Half
13.11 mi12:47:141:52:588:375:57
8:43
-0:03
25K
15.53 mi13:09:302:15:148:4222:16
9:11
+0:28
30K
18.64 mi13:41:332:47:178:5832:03
10:19
+1:08
20M
20.00 mi13:57:293:03:139:1015:56
11:43
+1:24
21M
21.00 mi14:09:123:14:569:1711:43
11:43
0:00
35K
21.75 mi14:17:583:23:429:228:46
11:43
0:00
23M
23.00 mi14:33:093:38:539:3115:11
12:08
+0:25
24M
24.00 mi14:45:433:51:279:3912:34
12:35
+0:27
40K
24.85 mi14:56:294:02:139:4510:45
12:35
0:00
25.2M
25.20 mi15:00:494:06:339:474:20
12:35
0:00
Finish
26.22 mi15:13:384:19:229:5412:49
12:35
0:00

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

8:29 /mi

Average Pace

9:54 /mi

Slowest Pace

12:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:17

64% of race

Time at Steady Pace

51:36

20% of race

Time at Slower Pace

40:29

16% of race

Average Pace: 9:54 /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 mi11:20:5426:388:3426:38
8:34
#18049
10K
6.21 mi11:47:1653:008:3226:22
8:29
#18089
15K
9.32 mi12:14:021:19:468:3326:46
8:37
#18217
20K
12.43 mi12:41:171:47:018:3727:15
8:46
#18274
Half
13.11 mi12:47:141:52:588:375:57
8:43
#18307
25K
15.53 mi13:09:302:15:148:4222:16
9:11
#18604
30K
18.64 mi13:41:332:47:178:5832:03
10:19
#19465
20M
20.00 mi13:57:293:03:139:1015:56
11:43
#20092
21M
21.00 mi14:09:123:14:569:1711:43
11:43
#20262
35K
21.75 mi14:17:583:23:429:228:46
11:43
#20516
23M
23.00 mi14:33:093:38:539:3115:11
12:08
#20847
24M
24.00 mi14:45:433:51:279:3912:34
12:35
#21190
40K
24.85 mi14:56:294:02:139:4510:45
12:35
#21429
25.2M
25.20 mi15:00:494:06:339:474:20
12:35
#21482
Finish
26.22 mi15:13:384:19:229:5412:49
12:35
#21779
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18049114431144318547(Top 70%)11696(Top 77%)11696(Top 1054%)
10K6.21 mi3.10 mi18089-4011487-4411487-4418165(Top 68%)11575(Top 76%)11575(Top 1043%)
15K9.32 mi3.11 mi18217-12811550-6311550-6318547(Top 70%)11696(Top 77%)11696(Top 1054%)
20K12.43 mi3.11 mi18274-5711581-3111581-3118512(Top 70%)11694(Top 77%)11694(Top 1054%)
Half13.11 mi0.68 mi18307-3311592-1111592-1119057(Top 72%)11933(Top 79%)11933(Top 1075%)
25K15.53 mi2.42 mi18604-29711688-9611688-9619765(Top 74%)12181(Top 80%)12181(Top 1097%)
30K18.64 mi3.11 mi19465-86112038-35012038-35021808(Top 82%)12990(Top 86%)12990(Top 1170%)
20M20.00 mi1.36 mi20092-62712275-23712275-23723844(Top 90%)13831(Top 91%)13831(Top 1246%)
21M21.00 mi1.00 mi20262-17012338-6312338-6322277(Top 84%)13100(Top 86%)13100(Top 1180%)
35K21.75 mi0.75 mi20516-25412444-10612444-10624395(Top 92%)14034(Top 92%)14034(Top 1264%)
23M23.00 mi1.25 mi20847-33112578-13412578-13424156(Top 91%)13920(Top 92%)13920(Top 1254%)
24M24.00 mi1.00 mi21190-34312717-13912717-13925130(Top 94%)14356(Top 95%)14356(Top 1293%)
40K24.85 mi0.85 mi21429-23912820-10312820-10324537(Top 92%)14060(Top 93%)14060(Top 1267%)
25.2M25.20 mi0.35 mi21482-5312836-1612836-1623416(Top 88%)13496(Top 89%)13496(Top 1216%)
Finish26.22 mi1.02 mi21779-29712975-13912975-13925731(Top 97%)14667(Top 97%)14667(Top 1321%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18547

Males

11696

M60-64

11696

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18165

Males

11575

M60-64

11575

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18547

Males

11696

M60-64

11696

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18512

Males

11694

M60-64

11694

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19057

Males

11933

M60-64

11933

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19765

Males

12181

M60-64

12181

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21808

Males

12990

M60-64

12990

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23844

Males

13831

M60-64

13831

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22277

Males

13100

M60-64

13100

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24395

Males

14034

M60-64

14034

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24156

Males

13920

M60-64

13920

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

25130

Males

14356

M60-64

14356

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24537

Males

14060

M60-64

14060

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23416

Males

13496

M60-64

13496

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25731

Males

14667

M60-64

14667

Passing Analysis

Category:
Athletes Passed
755
Passed By
4485
Net Change
-3730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18049
5K → 10K285325-40#18049#18089
10K → 15K138266-128#18089#18217
15K → 20K150207-57#18217#18274
20K → Half1548-33#18274#18307
Half → 25K59356-297#18307#18604
25K → 30K22883-861#18604#19465
30K → 20M14641-627#19465#20092
20M → 21M30200-170#20092#20262
21M → 35K9263-254#20262#20516
35K → 23M11342-331#20516#20847
23M → 24M6349-343#20847#21190
24M → 40K7246-239#21190#21429
40K → 25.2M558-53#21429#21482
25.2M → Finish4301-297#21482#21779
TOTALS7554485-3730
📊

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