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BOSTON MARATHON 2023

Jan Martinkovic

Bib: 31413•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
8:46/mi
27:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
51:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:15:43
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:40:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:45:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:52/mi
2:04:34
↑ 66↓ 880.2%
30K· 18.64 mi
8:24/mi
2:30:40
↑ 181↓ 1480.2%
20M
8:26/mi
2:42:07
↑ 64↓ 500.2%
21M
8:42/mi
2:50:49
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
2:56:56
↑ 17↓ 861.7%
23M
8:26/mi
3:07:30
↑ 23↓ 630.6%
24M
8:16/mi
3:15:46
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:22:55
↓ 200.3%
25.2M
9:28/mi
3:26:11
↑ 13↓ 160.2%
Finish· 26.22 mi
8:03/mi
3:34:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:30
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:48:53
Pace8:18 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4627:138:4627:13
8:46
-
10K
6.21 mi12:12:0551:328:1824:19
7:50
-0:56
15K
9.32 mi12:36:161:15:438:0724:11
7:47
-0:03
20K
12.43 mi13:00:471:40:148:0424:31
7:53
+0:06
Half
13.11 mi13:06:031:45:308:035:16
7:43
-0:10
25K
15.53 mi13:25:072:04:348:0119:04
7:52
+0:09
30K
18.64 mi13:51:132:30:408:0526:06
8:24
+0:32
20M
20.00 mi14:02:402:42:078:0611:27
8:26
+0:02
21M
21.00 mi14:11:222:50:498:088:42
8:42
+0:16
35K
21.75 mi14:17:292:56:568:086:07
8:11
-0:31
23M
23.00 mi14:28:033:07:308:0910:34
8:26
+0:15
24M
24.00 mi14:36:193:15:468:098:16
8:16
-0:10
40K
24.85 mi14:43:283:22:558:107:09
8:22
+0:06
25.2M
25.20 mi14:46:443:26:118:113:16
9:28
+1:06
Finish
26.22 mi14:54:563:34:238:118:12
8:03
-1:25

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

7:43 /mi

Average Pace

8:11 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:21

45% of race

Time at Steady Pace

1:17:51

36% of race

Time at Slower Pace

39:11

18% of race

Average Pace: 8:11 /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 mi11:47:4627:138:4627:13
8:46
#19223
10K
6.21 mi12:12:0551:328:1824:19
7:50
#16451
15K
9.32 mi12:36:161:15:438:0724:11
7:47
#15282
20K
12.43 mi13:00:471:40:148:0424:31
7:53
#14605
Half
13.11 mi13:06:031:45:308:035:16
7:43
#14483
25K
15.53 mi13:25:072:04:348:0119:04
7:52
#14007
30K
18.64 mi13:51:132:30:408:0526:06
8:24
#13963
20M
20.00 mi14:02:402:42:078:0611:27
8:26
#13878
21M
21.00 mi14:11:222:50:498:088:42
8:42
#13725
35K
21.75 mi14:17:292:56:568:086:07
8:11
#13681
23M
23.00 mi14:28:033:07:308:0910:34
8:26
#13602
24M
24.00 mi14:36:193:15:468:098:16
8:16
#13549
40K
24.85 mi14:43:283:22:558:107:09
8:22
#13486
25.2M
25.20 mi14:46:443:26:118:113:16
9:28
#13509
Finish
26.22 mi14:54:563:34:238:118:12
8:03
#13454
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi19223118551185512581(Top 47%)9339(Top 62%)9339(Top 417%)
10K6.21 mi3.10 mi16451+277210875+98010875+98013350(Top 50%)9700(Top 64%)9700(Top 433%)
15K9.32 mi3.11 mi15282+116910420+45510420+45512581(Top 47%)9339(Top 62%)9339(Top 417%)
20K12.43 mi3.11 mi14605+67710151+26910151+26912537(Top 47%)9245(Top 61%)9245(Top 413%)
Half13.11 mi0.68 mi14483+12210103+4810103+4812013(Top 45%)9090(Top 60%)9090(Top 406%)
25K15.53 mi2.42 mi14007+4769876+2279876+22711637(Top 44%)8772(Top 58%)8772(Top 391%)
30K18.64 mi3.11 mi13963+449827+499827+4913695(Top 51%)9528(Top 63%)9528(Top 425%)
20M20.00 mi1.36 mi13878+859774+539774+5313151(Top 49%)9196(Top 61%)9196(Top 410%)
21M21.00 mi1.00 mi13725+1539703+719703+7111658(Top 44%)8425(Top 56%)8425(Top 376%)
35K21.75 mi0.75 mi13681+449669+349669+3413252(Top 50%)9093(Top 60%)9093(Top 406%)
23M23.00 mi1.25 mi13602+799612+579612+5712836(Top 48%)8842(Top 58%)8842(Top 395%)
24M24.00 mi1.00 mi13549+539562+509562+5013034(Top 49%)8869(Top 58%)8869(Top 396%)
40K24.85 mi0.85 mi13486+639516+469516+4612444(Top 47%)8525(Top 56%)8525(Top 380%)
25.2M25.20 mi0.35 mi13509-239516951614997(Top 56%)9673(Top 64%)9673(Top 432%)
Finish26.22 mi1.02 mi13454+559472+449472+4412426(Top 47%)8494(Top 56%)8494(Top 379%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12581

Males

9339

M40-44

9339

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

13350

Males

9700

M40-44

9700

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12581

Males

9339

M40-44

9339

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12537

Males

9245

M40-44

9245

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12013

Males

9090

M40-44

9090

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11637

Males

8772

M40-44

8772

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

13695

Males

9528

M40-44

9528

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13151

Males

9196

M40-44

9196

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11658

Males

8425

M40-44

8425

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13252

Males

9093

M40-44

9093

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12836

Males

8842

M40-44

8842

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13034

Males

8869

M40-44

8869

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12444

Males

8525

M40-44

8525

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14997

Males

9673

M40-44

9673

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12426

Males

8494

M40-44

8494

Passing Analysis

Category:
Athletes Passed
6287
Passed By
518
Net Change
+5769
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19223
5K → 10K27797+2772#19223#16451
10K → 15K11767+1169#16451#15282
15K → 20K6836+677#15282#14605
20K → Half1253+122#14605#14483
Half → 25K4837+476#14483#14007
25K → 30K213169+44#14007#13963
30K → 20M13651+85#13963#13878
20M → 21M17522+153#13878#13725
21M → 35K7127+44#13725#13681
35K → 23M12849+79#13681#13602
23M → 24M9542+53#13602#13549
24M → 40K9835+63#13549#13486
40K → 25.2M2649-23#13486#13509
25.2M → Finish9944+55#13509#13454
TOTALS6287518+5769
📊

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