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BOSTON MARATHON 2023

Mark Nichols

Bib: 23830•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:32
Rank: #19802
Start → 5K
27:32 | 8:52/mi
10K· 6.21 mi
55:31
Rank: #20366 (-564)
5K → 10K
27:59 | 9:00/mi
15K· 9.32 mi
1:23:17
Rank: #20280 (+86)
10K → 15K
27:46 | 8:56/mi
20K· 12.43 mi
1:51:45
Rank: #20327 (-47)
15K → 20K
28:28 | 9:10/mi
Half· 13.11 mi
1:58:01
Rank: #20370 (-43)
20K → Half
6:16 | 9:11/mi
25K· 15.53 mi
2:20:09
Rank: #20222 (+148)
Half → 25K
22:08 | 9:08/mi
30K· 18.64 mi
2:50:03
Rank: #20160 (+62)
25K → 30K
29:54 | 9:37/mi
20M
3:03:02
Rank: #20055 (+105)
30K → 20M
12:59 | 9:33/mi
21M
3:13:06
Rank: #19925 (+130)
20M → 21M
10:04 | 10:04/mi
35K· 21.75 mi
3:19:55
Rank: #19864 (+61)
21M → 35K
6:49 | 9:07/mi
23M
3:32:00
Rank: #19795 (+69)
35K → 23M
12:05 | 9:39/mi
24M
3:41:16
Rank: #19740 (+55)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:49:50
Rank: #19762 (-22)
24M → 40K
8:34 | 10:01/mi
25.2M
3:53:28
Rank: #19759 (+3)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
4:03:23
Rank: #19812 (-53)
25.2M → Finish
9:55 | 9:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:01
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:05:22
Pace9:34 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5527:328:5227:32
8:52
-
10K
6.21 mi11:50:5455:318:5627:59
9:00
+0:08
15K
9.32 mi12:18:401:23:178:5627:46
8:56
-0:04
20K
12.43 mi12:47:081:51:459:0028:28
9:10
+0:14
Half
13.11 mi12:53:241:58:019:006:16
9:11
+0:01
25K
15.53 mi13:15:322:20:099:0122:08
9:08
-0:03
30K
18.64 mi13:45:262:50:039:0729:54
9:37
+0:29
20M
20.00 mi13:58:253:03:029:0912:59
9:33
-0:04
21M
21.00 mi14:08:293:13:069:1210:04
10:04
+0:31
35K
21.75 mi14:15:183:19:559:126:49
9:07
-0:57
23M
23.00 mi14:27:233:32:009:1312:05
9:39
+0:32
24M
24.00 mi14:36:393:41:169:139:16
9:16
-0:23
40K
24.85 mi14:45:133:49:509:158:34
10:01
+0:45
25.2M
25.20 mi14:48:513:53:289:163:38
10:32
+0:31
Finish
26.22 mi14:58:464:03:239:179:55
9:44
-0:48

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

8:52 /mi

Average Pace

9:17 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:41:07

91% of race

Time at Steady Pace

18:38

8% of race

Time at Slower Pace

3:38

1% of race

Average Pace: 9:17 /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 mi11:22:5527:328:5227:32
8:52
#19802
10K
6.21 mi11:50:5455:318:5627:59
9:00
#20366
15K
9.32 mi12:18:401:23:178:5627:46
8:56
#20280
20K
12.43 mi12:47:081:51:459:0028:28
9:10
#20327
Half
13.11 mi12:53:241:58:019:006:16
9:11
#20370
25K
15.53 mi13:15:322:20:099:0122:08
9:08
#20222
30K
18.64 mi13:45:262:50:039:0729:54
9:37
#20160
20M
20.00 mi13:58:253:03:029:0912:59
9:33
#20055
21M
21.00 mi14:08:293:13:069:1210:04
10:04
#19925
35K
21.75 mi14:15:183:19:559:126:49
9:07
#19864
23M
23.00 mi14:27:233:32:009:1312:05
9:39
#19795
24M
24.00 mi14:36:393:41:169:139:16
9:16
#19740
40K
24.85 mi14:45:133:49:509:158:34
10:01
#19762
25.2M
25.20 mi14:48:513:53:289:163:38
10:32
#19759
Finish
26.22 mi14:58:464:03:239:179:55
9:44
#19812
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi19802120911209120198(Top 76%)12398(Top 82%)12398(Top 5821%)
10K6.21 mi3.10 mi20366-56412386-29512386-29520901(Top 79%)12672(Top 84%)12672(Top 5949%)
15K9.32 mi3.11 mi20280+8612365+2112365+2120198(Top 76%)12398(Top 82%)12398(Top 5821%)
20K12.43 mi3.11 mi20327-4712402-3712402-3720413(Top 77%)12480(Top 82%)12480(Top 5859%)
Half13.11 mi0.68 mi20370-4312427-2512427-2521082(Top 79%)12761(Top 84%)12761(Top 5991%)
25K15.53 mi2.42 mi20222+14812372+5512372+5519543(Top 73%)12076(Top 80%)12076(Top 5669%)
30K18.64 mi3.11 mi20160+6212318+5412318+5419875(Top 75%)12158(Top 80%)12158(Top 5708%)
20M20.00 mi1.36 mi20055+10512258+6012258+6019056(Top 72%)11710(Top 77%)11710(Top 5498%)
21M21.00 mi1.00 mi19925+13012203+5512203+5518258(Top 69%)11338(Top 75%)11338(Top 5323%)
35K21.75 mi0.75 mi19864+6112166+3712166+3718376(Top 69%)11322(Top 75%)11322(Top 5315%)
23M23.00 mi1.25 mi19795+6912130+3612130+3618905(Top 71%)11530(Top 76%)11530(Top 5413%)
24M24.00 mi1.00 mi19740+5512103+2712103+2718327(Top 69%)11240(Top 74%)11240(Top 5277%)
40K24.85 mi0.85 mi19762-2212096+712096+720003(Top 75%)11917(Top 79%)11917(Top 5595%)
25.2M25.20 mi0.35 mi19759+312093+312093+319193(Top 72%)11565(Top 76%)11565(Top 5430%)
Finish26.22 mi1.02 mi19812-5312110-1712110-1720889(Top 78%)12369(Top 82%)12369(Top 5807%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20198

Males

12398

M70-74

12398

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20901

Males

12672

M70-74

12672

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20198

Males

12398

M70-74

12398

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20413

Males

12480

M70-74

12480

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

21082

Males

12761

M70-74

12761

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19543

Males

12076

M70-74

12076

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

19875

Males

12158

M70-74

12158

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19056

Males

11710

M70-74

11710

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

18258

Males

11338

M70-74

11338

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18376

Males

11322

M70-74

11322

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18905

Males

11530

M70-74

11530

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18327

Males

11240

M70-74

11240

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20003

Males

11917

M70-74

11917

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19193

Males

11565

M70-74

11565

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20889

Males

12369

M70-74

12369

Passing Analysis

Category:
Athletes Passed
1526
Passed By
1536
Net Change
-10
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19802
5K → 10K104668-564#19802#20366
10K → 15K224138+86#20366#20280
15K → 20K152199-47#20280#20327
20K → Half1659-43#20327#20370
Half → 25K21365+148#20370#20222
25K → 30K168106+62#20222#20160
30K → 20M14237+105#20160#20055
20M → 21M15424+130#20055#19925
21M → 35K7110+61#19925#19864
35K → 23M10839+69#19864#19795
23M → 24M7621+55#19795#19740
24M → 40K4769-22#19740#19762
40K → 25.2M2017+3#19762#19759
25.2M → Finish3184-53#19759#19812
TOTALS15261536-10
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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