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BOSTON MARATHON 2023

Keith Carroll

Bib: 29056•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
9:47/mi
30:23
↑ 97↓ 3451.5%
10K· 6.21 mi
10:04/mi
1:01:40
↑ 79↓ 1380.4%
15K· 9.32 mi
10:11/mi
1:33:18
↑ 67↓ 78
20K· 12.43 mi
10:49/mi
2:06:53
↑ 106↓ 860.1%
Half· 13.11 mi
10:32/mi
2:14:04
↑ 19↓ 370.5%
25K· 15.53 mi
12:48/mi
2:45:06
↑ 66↓ 880.2%
30K· 18.64 mi
12:20/mi
3:23:26
↑ 181↓ 1480.2%
20M
11:56/mi
3:39:39
↑ 64↓ 500.2%
21M
13:17/mi
3:52:56
↑ 106↓ 241.6%
35K· 21.75 mi
11:32/mi
4:01:34
↑ 17↓ 861.7%
23M
13:03/mi
4:17:54
↑ 23↓ 630.6%
24M
11:21/mi
4:29:15
↓ 821.3%
40K· 24.85 mi
12:36/mi
4:40:01
↓ 200.3%
25.2M
13:00/mi
4:44:30
↑ 13↓ 160.2%
Finish· 26.22 mi
11:26/mi
4:56:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:04
Pace10:14 /mi
2nd Half
Distance13.11 mi
Time2:42:05
Pace12:22 /mi
📊Positive Split: 20.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1530:239:4730:23
9:47
-
10K
6.21 mi12:19:321:01:409:5531:17
10:04
+0:17
15K
9.32 mi12:51:101:33:1810:0131:38
10:11
+0:07
20K
12.43 mi13:24:452:06:5310:1333:35
10:49
+0:38
Half
13.11 mi13:31:562:14:0410:147:11
10:32
-0:17
25K
15.53 mi14:02:582:45:0610:3831:02
12:48
+2:16
30K
18.64 mi14:41:183:23:2610:5538:20
12:20
-0:28
20M
20.00 mi14:57:313:39:3910:5916:13
11:56
-0:24
21M
21.00 mi15:10:483:52:5611:0613:17
13:17
+1:21
35K
21.75 mi15:19:264:01:3411:068:38
11:32
-1:45
23M
23.00 mi15:35:464:17:5411:1316:20
13:03
+1:31
24M
24.00 mi15:47:074:29:1511:1311:21
11:21
-1:42
40K
24.85 mi15:57:534:40:0111:1610:46
12:36
+1:15
25.2M
25.20 mi16:02:224:44:3011:174:29
13:00
+0:24
Finish
26.22 mi16:14:014:56:0911:1811:39
11:26
-1:34

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

9:47 /mi

Average Pace

11:18 /mi

Slowest Pace

13:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:04

45% of race

Time at Steady Pace

47:51

16% of race

Time at Slower Pace

1:54:14

39% of race

Average Pace: 11:18 /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 mi11:48:1530:239:4730:23
9:47
#22857
10K
6.21 mi12:19:321:01:409:5531:17
10:04
#23448
15K
9.32 mi12:51:101:33:1810:0131:38
10:11
#23635
20K
12.43 mi13:24:452:06:5310:1333:35
10:49
#23840
Half
13.11 mi13:31:562:14:0410:147:11
10:32
#23856
25K
15.53 mi14:02:582:45:0610:3831:02
12:48
#24409
30K
18.64 mi14:41:183:23:2610:5538:20
12:20
#24541
20M
20.00 mi14:57:313:39:3910:5916:13
11:56
#24501
21M
21.00 mi15:10:483:52:5611:0613:17
13:17
#24510
35K
21.75 mi15:19:264:01:3411:068:38
11:32
#24503
23M
23.00 mi15:35:464:17:5411:1316:20
13:03
#24575
24M
24.00 mi15:47:074:29:1511:1311:21
11:21
#24522
40K
24.85 mi15:57:534:40:0111:1610:46
12:36
#24555
25.2M
25.20 mi16:02:224:44:3011:174:29
13:00
#24554
Finish
26.22 mi16:14:014:56:0911:1811:39
11:26
#24581
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22857135291352923832(Top 90%)14008(Top 92%)14008(Top 683%)
10K6.21 mi3.10 mi23448-59113832-30313832-30323832(Top 90%)14013(Top 92%)14013(Top 683%)
15K9.32 mi3.11 mi23635-18713920-8813920-8823832(Top 90%)14008(Top 92%)14008(Top 683%)
20K12.43 mi3.11 mi23840-20514014-9414014-9424338(Top 91%)14203(Top 94%)14203(Top 692%)
Half13.11 mi0.68 mi23856-1614025-1114025-1124251(Top 91%)14167(Top 93%)14167(Top 690%)
25K15.53 mi2.42 mi24409-55314248-22314248-22325757(Top 97%)14799(Top 98%)14799(Top 721%)
30K18.64 mi3.11 mi24541-13214291-4314291-4324851(Top 93%)14344(Top 95%)14344(Top 699%)
20M20.00 mi1.36 mi24501+4014266+2514266+2524117(Top 91%)13955(Top 92%)13955(Top 680%)
21M21.00 mi1.00 mi24510-914267-114267-124372(Top 92%)14068(Top 93%)14068(Top 686%)
35K21.75 mi0.75 mi24503+714263+414263+424159(Top 91%)13929(Top 92%)13929(Top 679%)
23M23.00 mi1.25 mi24575-7214283-2014283-2025127(Top 94%)14407(Top 95%)14407(Top 702%)
24M24.00 mi1.00 mi24522+5314242+4114242+4123669(Top 89%)13665(Top 90%)13665(Top 666%)
40K24.85 mi0.85 mi24555-3314250-814250-824545(Top 92%)14068(Top 93%)14068(Top 686%)
25.2M25.20 mi0.35 mi24554+114244+614244+623961(Top 90%)13778(Top 91%)13778(Top 671%)
Finish26.22 mi1.02 mi24581-2714253-914253-924601(Top 92%)14122(Top 93%)14122(Top 688%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23832

Males

14008

M50-54

14008

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

23832

Males

14013

M50-54

14013

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23832

Males

14008

M50-54

14008

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24338

Males

14203

M50-54

14203

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24251

Males

14167

M50-54

14167

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25757

Males

14799

M50-54

14799

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24851

Males

14344

M50-54

14344

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

24117

Males

13955

M50-54

13955

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24372

Males

14068

M50-54

14068

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

24159

Males

13929

M50-54

13929

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

25127

Males

14407

M50-54

14407

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23669

Males

13665

M50-54

13665

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24545

Males

14068

M50-54

14068

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23961

Males

13778

M50-54

13778

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

24601

Males

14122

M50-54

14122

Passing Analysis

Category:
Athletes Passed
495
Passed By
2219
Net Change
-1724
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22857
5K → 10K48639-591#22857#23448
10K → 15K53240-187#23448#23635
15K → 20K58263-205#23635#23840
20K → Half1329-16#23840#23856
Half → 25K10563-553#23856#24409
25K → 30K67199-132#24409#24541
30K → 20M6525+40#24541#24501
20M → 21M3645-9#24501#24510
21M → 35K2720+7#24510#24503
35K → 23M2294-72#24503#24575
23M → 24M629+53#24575#24522
24M → 40K1144-33#24522#24555
40K → 25.2M1211+1#24555#24554
25.2M → Finish1138-27#24554#24581
TOTALS4952219-1724
📊

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