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BOSTON MARATHON 2023

Justin Kunz

VT

Bib: 11966 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 48%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:35/mi
23:34
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:16/mi
46:08
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:16/mi
1:08:44
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:30/mi
1:32:01
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:21/mi
1:37:02
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:58/mi
1:56:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:06/mi
2:21:33
↑ 181↓ 1480.2%
138 ft elev
20M
8:49/mi
2:33:32
↑ 64↓ 500.2%
148 ft elev
21M
9:51/mi
2:43:23
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:53/mi
2:50:02
↑ 17↓ 861.7%
156 ft elev
23M
10:52/mi
3:03:38
↑ 23↓ 630.6%
116 ft elev
24M
9:11/mi
3:12:49
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:30/mi
3:20:05
↓ 200.3%
20 ft elev
25.2M
8:51/mi
3:23:08
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:44/mi
3:32:02
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:02
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:55:00
Pace8:46 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3023:347:3523:34
7:35
-
10K
6.21 mi11:13:0446:087:2522:34
7:16
-0:19
15K
9.32 mi11:35:401:08:447:2222:36
7:16
0:00
20K
12.43 mi11:58:571:32:017:2423:17
7:30
+0:14
Half
13.11 mi12:03:581:37:027:245:01
7:21
-0:09
25K
15.53 mi12:23:181:56:227:2919:20
7:58
+0:37
30K
18.64 mi12:48:292:21:337:3625:11
8:06
+0:08
20M
20.00 mi13:00:282:33:327:4111:59
8:49
+0:43
21M
21.00 mi13:10:192:43:237:479:51
9:51
+1:02
35K
21.75 mi13:16:582:50:027:496:39
8:53
-0:58
23M
23.00 mi13:30:343:03:387:5913:36
10:52
+1:59
24M
24.00 mi13:39:453:12:498:029:11
9:11
-1:41
40K
24.85 mi13:47:013:20:058:037:16
8:30
-0:41
25.2M
25.20 mi13:50:043:23:088:043:03
8:51
+0:21
Finish
26.22 mi13:58:583:32:028:068:54
8:44
-0:07

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

7:16 /mi

Average Pace

8:06 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:22

55% of race

Time at Steady Pace

1:03:02

30% of race

Time at Slower Pace

32:38

15% of race

Average Pace: 8:05 /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 mi10:50:3023:347:3523:34
7:35
#10392
10K
6.21 mi11:13:0446:087:2522:34
7:16
#9369
15K
9.32 mi11:35:401:08:447:2222:36
7:16
#9006
20K
12.43 mi11:58:571:32:017:2423:17
7:30
#9039
Half
13.11 mi12:03:581:37:027:245:01
7:21
#9032
25K
15.53 mi12:23:181:56:227:2919:20
7:58
#9564
30K
18.64 mi12:48:292:21:337:3625:11
8:06
#9927
20M
20.00 mi13:00:282:33:327:4111:59
8:49
#10368
21M
21.00 mi13:10:192:43:237:479:51
9:51
#10848
35K
21.75 mi13:16:582:50:027:496:39
8:53
#11131
23M
23.00 mi13:30:343:03:387:5913:36
10:52
#12313
24M
24.00 mi13:39:453:12:498:029:11
9:11
#12643
40K
24.85 mi13:47:013:20:058:037:16
8:30
#12664
25.2M
25.20 mi13:50:043:23:088:043:03
8:51
#12649
Finish
26.22 mi13:58:583:32:028:068:54
8:44
#12810
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10392835183518356(Top 31%)7149(Top 47%)7149(Top 317%)
10K6.21 mi3.10 mi9369+10237801+5507801+5508585(Top 32%)7324(Top 48%)7324(Top 325%)
15K9.32 mi3.11 mi9006+3637572+2297572+2298356(Top 31%)7149(Top 47%)7149(Top 317%)
20K12.43 mi3.11 mi9039-337574-27574-29268(Top 35%)7670(Top 51%)7670(Top 341%)
Half13.11 mi0.68 mi9032+77564+107564+109044(Top 34%)7560(Top 50%)7560(Top 336%)
25K15.53 mi2.42 mi9564-5327879-3157879-31512509(Top 47%)9128(Top 60%)9128(Top 405%)
30K18.64 mi3.11 mi9927-3638053-1748053-17411682(Top 44%)8662(Top 57%)8662(Top 385%)
20M20.00 mi1.36 mi10368-4418252-1998252-19915504(Top 58%)10203(Top 67%)10203(Top 453%)
21M21.00 mi1.00 mi10848-4808450-1988450-19817416(Top 65%)10951(Top 72%)10951(Top 486%)
35K21.75 mi0.75 mi11131-2838580-1308580-13017349(Top 65%)10848(Top 71%)10848(Top 482%)
23M23.00 mi1.25 mi12313-11829060-4809060-48022068(Top 83%)12936(Top 85%)12936(Top 574%)
24M24.00 mi1.00 mi12643-3309186-1269186-12617974(Top 68%)11059(Top 73%)11059(Top 491%)
40K24.85 mi0.85 mi12664-219177+99177+913297(Top 50%)8915(Top 59%)8915(Top 396%)
25.2M25.20 mi0.35 mi12649+159162+159162+1511545(Top 43%)8059(Top 53%)8059(Top 358%)
Finish26.22 mi1.02 mi12810-1619205-439205-4316640(Top 63%)10439(Top 69%)10439(Top 464%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8356

Males

7149

M45-49

7149

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8585

Males

7324

M45-49

7324

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8356

Males

7149

M45-49

7149

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9268

Males

7670

M45-49

7670

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9044

Males

7560

M45-49

7560

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12509

Males

9128

M45-49

9128

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11682

Males

8662

M45-49

8662

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15504

Males

10203

M45-49

10203

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17416

Males

10951

M45-49

10951

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17349

Males

10848

M45-49

10848

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22068

Males

12936

M45-49

12936

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

17974

Males

11059

M45-49

11059

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13297

Males

8915

M45-49

8915

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11545

Males

8059

M45-49

8059

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16640

Males

10439

M45-49

10439

Passing Analysis

Category:
Athletes Passed
1871*
Passed By
4288
Net Change
-2418
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10392
5K → 10K1065*42+1023#10392#9369
10K → 15K38926+363#9369#9006
15K → 20K119152-33#9006#9039
20K → Half2922+7#9039#9032
Half → 25K31563-532#9032#9564
25K → 30K72*435-363#9564#9927
30K → 20M19459-441#9927#10368
20M → 21M12492-480#10368#10848
21M → 35K8291-283#10848#11131
35K → 23M31185-1182#11131#12313
23M → 24M17347-330#12313#12643
24M → 40K5071-21#12643#12664
40K → 25.2M3621+15#12664#12649
25.2M → Finish21182-161#12649#12810
TOTALS1871*4288-2418

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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