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BOSTON MARATHON 2023

Karl Rockne

Bib: 15150•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
8:37/mi
26:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
53:54
↑ 79↓ 1380.4%
15K· 9.32 mi
9:08/mi
1:22:17
↑ 67↓ 78
20K· 12.43 mi
9:08/mi
1:50:39
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:56:43
↑ 19↓ 370.5%
25K· 15.53 mi
9:41/mi
2:20:12
↑ 66↓ 880.2%
30K· 18.64 mi
11:14/mi
2:55:07
↑ 181↓ 1480.2%
20M
13:29/mi
3:13:26
↑ 64↓ 500.2%
21M
14:37/mi
3:28:03
↑ 106↓ 241.6%
35K· 21.75 mi
11:35/mi
3:36:43
↑ 17↓ 861.7%
23M
14:29/mi
3:54:51
↑ 23↓ 630.6%
24M
13:48/mi
4:08:39
↓ 821.3%
40K· 24.85 mi
14:28/mi
4:21:01
↓ 200.3%
25.2M
21:48/mi
4:28:32
↑ 13↓ 160.2%
Finish· 26.22 mi
11:59/mi
4:40:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:43
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:44:02
Pace12:31 /mi
📊Positive Split: 40.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:4626:468:3726:46
8:37
-
10K
6.21 mi11:24:5453:548:4027:08
8:44
+0:07
15K
9.32 mi11:53:171:22:178:5028:23
9:08
+0:24
20K
12.43 mi12:21:391:50:398:5428:22
9:08
0:00
Half
13.11 mi12:27:431:56:438:546:04
8:54
-0:14
25K
15.53 mi12:51:122:20:129:0223:29
9:41
+0:47
30K
18.64 mi13:26:072:55:079:2434:55
11:14
+1:33
20M
20.00 mi13:44:263:13:269:4018:19
13:29
+2:15
21M
21.00 mi13:59:033:28:039:5414:37
14:37
+1:08
35K
21.75 mi14:07:433:36:439:588:40
11:35
-3:02
23M
23.00 mi14:25:513:54:5110:1318:08
14:29
+2:54
24M
24.00 mi14:39:394:08:3910:2213:48
13:48
-0:41
40K
24.85 mi14:52:014:21:0110:3012:22
14:28
+0:40
25.2M
25.20 mi14:59:324:28:3210:397:31
21:48
+7:20
Finish
26.22 mi15:11:454:40:4510:4312:13
11:59
-9:49

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

8:37 /mi

Average Pace

10:43 /mi

Slowest Pace

21:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:12

50% of race

Time at Steady Pace

55:48

20% of race

Time at Slower Pace

1:24:45

30% of race

Average Pace: 10:42 /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 mi10:57:4626:468:3726:46
8:37
#18315
10K
6.21 mi11:24:5453:548:4027:08
8:44
#18970
15K
9.32 mi11:53:171:22:178:5028:23
9:08
#19751
20K
12.43 mi12:21:391:50:398:5428:22
9:08
#19876
Half
13.11 mi12:27:431:56:438:546:04
8:54
#19865
25K
15.53 mi12:51:122:20:129:0223:29
9:41
#20243
30K
18.64 mi13:26:072:55:079:2434:55
11:14
#21164
20M
20.00 mi13:44:263:13:269:4018:19
13:29
#21793
21M
21.00 mi13:59:033:28:039:5414:37
14:37
#22187
35K
21.75 mi14:07:433:36:439:588:40
11:35
#22283
23M
23.00 mi14:25:513:54:5110:1318:08
14:29
#22731
24M
24.00 mi14:39:394:08:3910:2213:48
13:48
#22986
40K
24.85 mi14:52:014:21:0110:3012:22
14:28
#23214
25.2M
25.20 mi14:59:324:28:3210:397:31
21:48
#23476
Finish
26.22 mi15:11:454:40:4510:4312:13
11:59
#23592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi18315115431154321090(Top 79%)12787(Top 84%)12787(Top 899%)
10K6.21 mi3.10 mi18970-65511820-27711820-27719596(Top 74%)12132(Top 80%)12132(Top 853%)
15K9.32 mi3.11 mi19751-78112141-32112141-32121090(Top 79%)12787(Top 84%)12787(Top 899%)
20K12.43 mi3.11 mi19876-12512209-6812209-6820277(Top 76%)12429(Top 82%)12429(Top 874%)
Half13.11 mi0.68 mi19865+1112203+612203+619953(Top 75%)12306(Top 81%)12306(Top 865%)
25K15.53 mi2.42 mi20243-37812382-17912382-17921405(Top 80%)12883(Top 85%)12883(Top 906%)
30K18.64 mi3.11 mi21164-92112774-39212774-39223476(Top 88%)13733(Top 90%)13733(Top 966%)
20M20.00 mi1.36 mi21793-62913043-26913043-26925533(Top 96%)14634(Top 96%)14634(Top 1029%)
21M21.00 mi1.00 mi22187-39413208-16513208-16525490(Top 96%)14612(Top 96%)14612(Top 1028%)
35K21.75 mi0.75 mi22283-9613236-2813236-2824207(Top 91%)13954(Top 92%)13954(Top 981%)
23M23.00 mi1.25 mi22731-44813423-18713423-18726109(Top 98%)14894(Top 98%)14894(Top 1047%)
24M24.00 mi1.00 mi22986-25513536-11313536-11325970(Top 98%)14799(Top 98%)14799(Top 1041%)
40K24.85 mi0.85 mi23214-22813643-10713643-10725929(Top 97%)14765(Top 97%)14765(Top 1038%)
25.2M25.20 mi0.35 mi23476-26213764-12113764-12126612(Top 100%)15169(Top 100%)15169(Top 1067%)
Finish26.22 mi1.02 mi23592-11613812-4813812-4825215(Top 95%)14412(Top 95%)14412(Top 1014%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

21090

Males

12787

M55-59

12787

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19596

Males

12132

M55-59

12132

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

21090

Males

12787

M55-59

12787

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20277

Males

12429

M55-59

12429

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

19953

Males

12306

M55-59

12306

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21405

Males

12883

M55-59

12883

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23476

Males

13733

M55-59

13733

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25533

Males

14634

M55-59

14634

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25490

Males

14612

M55-59

14612

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

24207

Males

13954

M55-59

13954

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26109

Males

14894

M55-59

14894

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

25970

Males

14799

M55-59

14799

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25929

Males

14765

M55-59

14765

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26612

Males

15169

M55-59

15169

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25215

Males

14412

M55-59

14412

Passing Analysis

Category:
Athletes Passed
413
Passed By
5690
Net Change
-5277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18315
5K → 10K112767-655#18315#18970
10K → 15K25806-781#18970#19751
15K → 20K126251-125#19751#19876
20K → Half3120+11#19876#19865
Half → 25K50428-378#19865#20243
25K → 30K14935-921#20243#21164
30K → 20M9638-629#21164#21793
20M → 21M5399-394#21793#22187
21M → 35K11107-96#22187#22283
35K → 23M8456-448#22283#22731
23M → 24M4259-255#22731#22986
24M → 40K9237-228#22986#23214
40K → 25.2M0262-262#23214#23476
25.2M → Finish9125-116#23476#23592
TOTALS4135690-5277
📊

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