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BOSTON MARATHON 2023

Chris Grimley

Bib: 29726•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
8:54/mi
27:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
54:31
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:21:32
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:48:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:54:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:17:08
↑ 66↓ 880.2%
30K· 18.64 mi
9:30/mi
2:46:38
↑ 181↓ 1480.2%
20M
9:35/mi
2:59:39
↑ 64↓ 500.2%
21M
10:19/mi
3:09:58
↑ 106↓ 241.6%
35K· 21.75 mi
9:32/mi
3:17:06
↑ 17↓ 861.7%
23M
9:49/mi
3:29:24
↑ 23↓ 630.6%
24M
10:03/mi
3:39:27
↓ 821.3%
40K· 24.85 mi
10:36/mi
3:48:31
↓ 200.3%
25.2M
10:06/mi
3:52:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
4:00:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:55
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:05:57
Pace9:36 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0127:398:5427:39
8:54
-
10K
6.21 mi12:15:5354:318:4626:52
8:39
-0:15
15K
9.32 mi12:42:541:21:328:4527:01
8:42
+0:03
20K
12.43 mi13:10:171:48:558:4627:23
8:49
+0:07
Half
13.11 mi13:16:171:54:558:466:00
8:48
-0:01
25K
15.53 mi13:38:302:17:088:5022:13
9:10
+0:22
30K
18.64 mi14:08:002:46:388:5629:30
9:30
+0:20
20M
20.00 mi14:21:012:59:398:5913:01
9:35
+0:05
21M
21.00 mi14:31:203:09:589:0310:19
10:19
+0:44
35K
21.75 mi14:38:283:17:069:047:08
9:32
-0:47
23M
23.00 mi14:50:463:29:249:0612:18
9:49
+0:17
24M
24.00 mi15:00:493:39:279:0910:03
10:03
+0:14
40K
24.85 mi15:09:533:48:319:129:04
10:36
+0:33
25.2M
25.20 mi15:13:223:52:009:123:29
10:06
-0:30
Finish
26.22 mi15:22:144:00:529:128:52
8:42
-1:24

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

8:39 /mi

Average Pace

9:12 /mi

Slowest Pace

10:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:00

61% of race

Time at Steady Pace

49:39

21% of race

Time at Slower Pace

45:13

19% of race

Average Pace: 9:11 /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 mi11:49:0127:398:5427:39
8:54
#19979
10K
6.21 mi12:15:5354:318:4626:52
8:39
#19535
15K
9.32 mi12:42:541:21:328:4527:01
8:42
#19323
20K
12.43 mi13:10:171:48:558:4627:23
8:49
#19136
Half
13.11 mi13:16:171:54:558:466:00
8:48
#19146
25K
15.53 mi13:38:302:17:088:5022:13
9:10
#19242
30K
18.64 mi14:08:002:46:388:5629:30
9:30
#19308
20M
20.00 mi14:21:012:59:398:5913:01
9:35
#19278
21M
21.00 mi14:31:203:09:589:0310:19
10:19
#19265
35K
21.75 mi14:38:283:17:069:047:08
9:32
#19305
23M
23.00 mi14:50:463:29:249:0612:18
9:49
#19320
24M
24.00 mi15:00:493:39:279:0910:03
10:03
#19429
40K
24.85 mi15:09:533:48:319:129:04
10:36
#19551
25.2M
25.20 mi15:13:223:52:009:123:29
10:06
#19529
Finish
26.22 mi15:22:144:00:529:128:52
8:42
#19453
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19979121521215218950(Top 71%)11859(Top 78%)11859(Top 578%)
10K6.21 mi3.10 mi19535+44412027+12512027+12519114(Top 72%)11944(Top 79%)11944(Top 582%)
15K9.32 mi3.11 mi19323+21211971+5611971+5618950(Top 71%)11859(Top 78%)11859(Top 578%)
20K12.43 mi3.11 mi19136+18711918+5311918+5318765(Top 70%)11799(Top 78%)11799(Top 575%)
Half13.11 mi0.68 mi19146-1011921-311921-319431(Top 73%)12072(Top 80%)12072(Top 588%)
25K15.53 mi2.42 mi19242-9611958-3711958-3719672(Top 74%)12135(Top 80%)12135(Top 591%)
30K18.64 mi3.11 mi19308-6611968-1011968-1019414(Top 73%)11970(Top 79%)11970(Top 583%)
20M20.00 mi1.36 mi19278+3011938+3011938+3019145(Top 72%)11752(Top 77%)11752(Top 573%)
21M21.00 mi1.00 mi19265+1311923+1511923+1519062(Top 72%)11666(Top 77%)11666(Top 569%)
35K21.75 mi0.75 mi19305-4011932-911932-919941(Top 75%)12022(Top 79%)12022(Top 586%)
23M23.00 mi1.25 mi19320-1511935-311935-319487(Top 73%)11792(Top 78%)11792(Top 575%)
24M24.00 mi1.00 mi19429-10911972-3711972-3720912(Top 79%)12395(Top 82%)12395(Top 604%)
40K24.85 mi0.85 mi19551-12212015-4312015-4321454(Top 81%)12556(Top 83%)12556(Top 612%)
25.2M25.20 mi0.35 mi19529+2211997+1811997+1817749(Top 67%)10908(Top 72%)10908(Top 532%)
Finish26.22 mi1.02 mi19453+7611960+3711960+3716489(Top 62%)10386(Top 68%)10386(Top 506%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18950

Males

11859

M50-54

11859

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19114

Males

11944

M50-54

11944

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18950

Males

11859

M50-54

11859

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18765

Males

11799

M50-54

11799

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19431

Males

12072

M50-54

12072

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19672

Males

12135

M50-54

12135

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19414

Males

11970

M50-54

11970

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

19145

Males

11752

M50-54

11752

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19062

Males

11666

M50-54

11666

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19941

Males

12022

M50-54

12022

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19487

Males

11792

M50-54

11792

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20912

Males

12395

M50-54

12395

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21454

Males

12556

M50-54

12556

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17749

Males

10908

M50-54

10908

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16489

Males

10386

M50-54

10386

Passing Analysis

Category:
Athletes Passed
1874
Passed By
1348
Net Change
+526
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19979
5K → 10K591147+444#19979#19535
10K → 15K318106+212#19535#19323
15K → 20K25467+187#19323#19136
20K → Half2535-10#19136#19146
Half → 25K89185-96#19146#19242
25K → 30K144210-66#19242#19308
30K → 20M9363+30#19308#19278
20M → 21M8673+13#19278#19265
21M → 35K2969-40#19265#19305
35K → 23M6681-15#19305#19320
23M → 24M35144-109#19320#19429
24M → 40K16138-122#19429#19551
40K → 25.2M3311+22#19551#19529
25.2M → Finish9519+76#19529#19453
TOTALS18741348+526
📊

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