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BOSTON MARATHON 2023

Niels Kofoed

Bib: 18886•M

WA

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
Top 29%
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
8:23/mi
26:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
52:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:25/mi
1:18:10
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:44:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:50:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:10:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:37:39
↑ 181↓ 1480.2%
20M
8:43/mi
2:49:30
↑ 64↓ 500.2%
21M
9:07/mi
2:58:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
3:04:26
↑ 17↓ 861.7%
23M
7:59/mi
3:14:26
↑ 23↓ 630.6%
24M
7:46/mi
3:22:12
↓ 821.3%
40K· 24.85 mi
7:54/mi
3:28:57
↓ 200.3%
25.2M
8:30/mi
3:31:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:39:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:50:21
Pace8:25 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:49:07
Pace8:19 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3026:038:2326:03
8:23
-
10K
6.21 mi11:43:2952:028:2225:59
8:22
-0:01
15K
9.32 mi12:09:371:18:108:2326:08
8:25
+0:03
20K
12.43 mi12:36:081:44:418:2526:31
8:32
+0:07
Half
13.11 mi12:41:481:50:218:255:40
8:18
-0:14
25K
15.53 mi13:02:092:10:428:2520:21
8:24
+0:06
30K
18.64 mi13:29:062:37:398:2726:57
8:40
+0:16
20M
20.00 mi13:40:572:49:308:2811:51
8:43
+0:03
21M
21.00 mi13:50:042:58:378:309:07
9:07
+0:24
35K
21.75 mi13:55:533:04:268:295:49
7:46
-1:21
23M
23.00 mi14:05:533:14:268:2710:00
7:59
+0:13
24M
24.00 mi14:13:393:22:128:267:46
7:46
-0:13
40K
24.85 mi14:20:243:28:578:246:45
7:54
+0:08
25.2M
25.20 mi14:23:203:31:538:242:56
8:30
+0:36
Finish
26.22 mi14:30:553:39:288:237:35
7:26
-1:04

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

7:26 /mi

Average Pace

8:23 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

37:55

17% of race

Time at Steady Pace

2:13:38

61% of race

Time at Slower Pace

47:55

22% of race

Average Pace: 8:22 /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 mi11:17:3026:038:2326:03
8:23
#16756
10K
6.21 mi11:43:2952:028:2225:59
8:22
#17015
15K
9.32 mi12:09:371:18:108:2326:08
8:25
#17104
20K
12.43 mi12:36:081:44:418:2526:31
8:32
#17086
Half
13.11 mi12:41:481:50:218:255:40
8:18
#17060
25K
15.53 mi13:02:092:10:428:2520:21
8:24
#16819
30K
18.64 mi13:29:062:37:398:2726:57
8:40
#16502
20M
20.00 mi13:40:572:49:308:2811:51
8:43
#16372
21M
21.00 mi13:50:042:58:378:309:07
9:07
#16230
35K
21.75 mi13:55:533:04:268:295:49
7:46
#16011
23M
23.00 mi14:05:533:14:268:2710:00
7:59
#15640
24M
24.00 mi14:13:393:22:128:267:46
7:46
#15394
40K
24.85 mi14:20:243:28:578:246:45
7:54
#15154
25.2M
25.20 mi14:23:203:31:538:242:56
8:30
#15052
Finish
26.22 mi14:30:553:39:288:237:35
7:26
#14807
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16756109681096817206(Top 65%)11133(Top 73%)11133(Top 1003%)
10K6.21 mi3.10 mi17015-25911069-10111069-10117317(Top 65%)11221(Top 74%)11221(Top 1011%)
15K9.32 mi3.11 mi17104-8911113-4411113-4417206(Top 65%)11133(Top 73%)11133(Top 1003%)
20K12.43 mi3.11 mi17086+1811083+3011083+3017066(Top 64%)11079(Top 73%)11079(Top 998%)
Half13.11 mi0.68 mi17060+2611071+1211071+1216463(Top 62%)10855(Top 72%)10855(Top 978%)
25K15.53 mi2.42 mi16819+24110951+12010951+12015524(Top 58%)10349(Top 68%)10349(Top 932%)
30K18.64 mi3.11 mi16502+31710795+15610795+15615346(Top 58%)10187(Top 67%)10187(Top 918%)
20M20.00 mi1.36 mi16372+13010722+7310722+7314964(Top 56%)9974(Top 66%)9974(Top 899%)
21M21.00 mi1.00 mi16230+14210653+6910653+6914051(Top 53%)9523(Top 63%)9523(Top 858%)
35K21.75 mi0.75 mi16011+21910548+10510548+10510480(Top 39%)7885(Top 52%)7885(Top 710%)
23M23.00 mi1.25 mi15640+37110369+17910369+1799654(Top 36%)7327(Top 48%)7327(Top 660%)
24M24.00 mi1.00 mi15394+24610271+9810271+989530(Top 36%)7178(Top 47%)7178(Top 647%)
40K24.85 mi0.85 mi15154+24010165+10610165+1069316(Top 35%)7002(Top 46%)7002(Top 631%)
25.2M25.20 mi0.35 mi15052+10210115+5010115+509564(Top 36%)7090(Top 47%)7090(Top 639%)
Finish26.22 mi1.02 mi14807+2459997+1189997+1188091(Top 30%)6227(Top 41%)6227(Top 561%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17206

Males

11133

M60-64

11133

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17317

Males

11221

M60-64

11221

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17206

Males

11133

M60-64

11133

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17066

Males

11079

M60-64

11079

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16463

Males

10855

M60-64

10855

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15524

Males

10349

M60-64

10349

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15346

Males

10187

M60-64

10187

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14964

Males

9974

M60-64

9974

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14051

Males

9523

M60-64

9523

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10480

Males

7885

M60-64

7885

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9654

Males

7327

M60-64

7327

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9530

Males

7178

M60-64

7178

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9316

Males

7002

M60-64

7002

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9564

Males

7090

M60-64

7090

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8091

Males

6227

M60-64

6227

Passing Analysis

Category:
Athletes Passed
2951
Passed By
1002
Net Change
+1949
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16756
5K → 10K203462-259#16756#17015
10K → 15K158247-89#17015#17104
15K → 20K193175+18#17104#17086
20K → Half4115+26#17086#17060
Half → 25K26322+241#17060#16819
25K → 30K35639+317#16819#16502
30K → 20M15020+130#16502#16372
20M → 21M15917+142#16372#16230
21M → 35K2190+219#16230#16011
35K → 23M3710+371#16011#15640
23M → 24M2471+246#15640#15394
24M → 40K2411+240#15394#15154
40K → 25.2M1031+102#15154#15052
25.2M → Finish2472+245#15052#14807
TOTALS29511002+1949
📊

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