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BOSTON MARATHON 2023

Guenter Wilhelm Koczessa

Bib: 23858•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
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
8:30/mi
26:25
↑ 97↓ 3451.5%
10K· 6.21 mi
9:14/mi
55:05
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:22:59
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:51:46
↑ 106↓ 860.1%
Half· 13.11 mi
9:11/mi
1:58:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:22/mi
2:20:45
↑ 66↓ 880.2%
30K· 18.64 mi
9:32/mi
2:50:22
↑ 181↓ 1480.2%
20M
9:38/mi
3:03:27
↑ 64↓ 500.2%
21M
11:15/mi
3:14:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:03/mi
3:21:28
↑ 17↓ 861.7%
23M
9:52/mi
3:33:49
↑ 23↓ 630.6%
24M
9:24/mi
3:43:13
↓ 821.3%
40K· 24.85 mi
9:58/mi
3:51:44
↓ 200.3%
25.2M
11:21/mi
3:55:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:38/mi
4:06:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:02
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:08:27
Pace9:48 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4626:258:3026:25
8:30
-
10K
6.21 mi11:49:2655:058:5228:40
9:14
+0:44
15K
9.32 mi12:17:201:22:598:5427:54
8:59
-0:15
20K
12.43 mi12:46:071:51:469:0028:47
9:16
+0:17
Half
13.11 mi12:52:231:58:029:006:16
9:11
-0:05
25K
15.53 mi13:15:062:20:459:0422:43
9:22
+0:11
30K
18.64 mi13:44:432:50:229:0829:37
9:32
+0:10
20M
20.00 mi13:57:483:03:279:1013:05
9:38
+0:06
21M
21.00 mi14:09:033:14:429:1611:15
11:15
+1:37
35K
21.75 mi14:15:493:21:289:166:46
9:03
-2:12
23M
23.00 mi14:28:103:33:499:1812:21
9:52
+0:49
24M
24.00 mi14:37:343:43:139:189:24
9:24
-0:28
40K
24.85 mi14:46:053:51:449:198:31
9:58
+0:34
25.2M
25.20 mi14:50:003:55:399:213:55
11:21
+1:23
Finish
26.22 mi15:00:504:06:299:2410:50
10:38
-0:43

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

8:30 /mi

Average Pace

9:24 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:19

22% of race

Time at Steady Pace

2:25:18

59% of race

Time at Slower Pace

46:52

19% of race

Average Pace: 9:24 /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 mi11:20:4626:258:3026:25
8:30
#17576
10K
6.21 mi11:49:2655:058:5228:40
9:14
#20006
15K
9.32 mi12:17:201:22:598:5427:54
8:59
#20136
20K
12.43 mi12:46:071:51:469:0028:47
9:16
#20330
Half
13.11 mi12:52:231:58:029:006:16
9:11
#20378
25K
15.53 mi13:15:062:20:459:0422:43
9:22
#20400
30K
18.64 mi13:44:432:50:229:0829:37
9:32
#20232
20M
20.00 mi13:57:483:03:279:1013:05
9:38
#20139
21M
21.00 mi14:09:033:14:429:1611:15
11:15
#20229
35K
21.75 mi14:15:493:21:289:166:46
9:03
#20150
23M
23.00 mi14:28:103:33:499:1812:21
9:52
#20120
24M
24.00 mi14:37:343:43:139:189:24
9:24
#20075
40K
24.85 mi14:46:053:51:449:198:31
9:58
#20064
25.2M
25.20 mi14:50:003:55:399:213:55
11:21
#20085
Finish
26.22 mi15:00:504:06:299:2410:50
10:38
#20215
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi17576112561125620403(Top 77%)12481(Top 82%)12481(Top 2273%)
10K6.21 mi3.10 mi20006-243012215-95912215-95921693(Top 81%)13018(Top 86%)13018(Top 2371%)
15K9.32 mi3.11 mi20136-13012302-8712302-8720403(Top 77%)12481(Top 82%)12481(Top 2273%)
20K12.43 mi3.11 mi20330-19412403-10112403-10120837(Top 78%)12683(Top 84%)12683(Top 2310%)
Half13.11 mi0.68 mi20378-4812428-2512428-2521088(Top 79%)12767(Top 84%)12767(Top 2326%)
25K15.53 mi2.42 mi20400-2212445-1712445-1720407(Top 77%)12454(Top 82%)12454(Top 2268%)
30K18.64 mi3.11 mi20232+16812351+9412351+9419546(Top 73%)12024(Top 79%)12024(Top 2190%)
20M20.00 mi1.36 mi20139+9312292+5912292+5919318(Top 73%)11833(Top 78%)11833(Top 2155%)
21M21.00 mi1.00 mi20229-9012327-3512327-3521362(Top 80%)12679(Top 84%)12679(Top 2309%)
35K21.75 mi0.75 mi20150+7912282+4512282+4518082(Top 68%)11184(Top 74%)11184(Top 2037%)
23M23.00 mi1.25 mi20120+3012263+1912263+1919595(Top 74%)11838(Top 78%)11838(Top 2156%)
24M24.00 mi1.00 mi20075+4512236+2712236+2718846(Top 71%)11470(Top 76%)11470(Top 2089%)
40K24.85 mi0.85 mi20064+1112222+1412222+1419857(Top 75%)11858(Top 78%)11858(Top 2160%)
25.2M25.20 mi0.35 mi20085-2112223-112223-121220(Top 80%)12486(Top 82%)12486(Top 2274%)
Finish26.22 mi1.02 mi20215-13012271-4812271-4823273(Top 87%)13461(Top 89%)13461(Top 2452%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20403

Males

12481

M65-69

12481

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21693

Males

13018

M65-69

13018

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20403

Males

12481

M65-69

12481

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20837

Males

12683

M65-69

12683

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21088

Males

12767

M65-69

12767

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20407

Males

12454

M65-69

12454

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19546

Males

12024

M65-69

12024

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

19318

Males

11833

M65-69

11833

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21362

Males

12679

M65-69

12679

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18082

Males

11184

M65-69

11184

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19595

Males

11838

M65-69

11838

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18846

Males

11470

M65-69

11470

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19857

Males

11858

M65-69

11858

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21220

Males

12486

M65-69

12486

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23273

Males

13461

M65-69

13461

Passing Analysis

Category:
Athletes Passed
1082
Passed By
3721
Net Change
-2639
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17576
5K → 10K122442-2430#17576#20006
10K → 15K133263-130#20006#20136
15K → 20K102296-194#20136#20330
20K → Half1361-48#20330#20378
Half → 25K101123-22#20378#20400
25K → 30K23769+168#20400#20232
30K → 20M12431+93#20232#20139
20M → 21M48138-90#20139#20229
21M → 35K856+79#20229#20150
35K → 23M9565+30#20150#20120
23M → 24M6419+45#20120#20075
24M → 40K4938+11#20075#20064
40K → 25.2M1334-21#20064#20085
25.2M → Finish6136-130#20085#20215
TOTALS10823721-2639
📊

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