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BOSTON MARATHON 2023

Courtlyn Kramer

Bib: 25488•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
10:54/mi
33:52
↑ 97↓ 3451.5%
10K· 6.21 mi
10:38/mi
1:06:55
↑ 79↓ 1380.4%
15K· 9.32 mi
10:24/mi
1:39:14
↑ 67↓ 78
20K· 12.43 mi
10:25/mi
2:11:37
↑ 106↓ 860.1%
Half· 13.11 mi
10:29/mi
2:18:46
↑ 19↓ 370.5%
25K· 15.53 mi
10:37/mi
2:44:31
↑ 66↓ 880.2%
30K· 18.64 mi
10:59/mi
3:18:39
↑ 181↓ 1480.2%
20M
10:43/mi
3:33:13
↑ 64↓ 500.2%
21M
11:08/mi
3:44:21
↑ 106↓ 241.6%
35K· 21.75 mi
11:08/mi
3:52:41
↑ 17↓ 861.7%
23M
11:56/mi
4:07:38
↑ 23↓ 630.6%
24M
11:17/mi
4:18:55
↓ 821.3%
40K· 24.85 mi
12:03/mi
4:29:13
↓ 200.3%
25.2M
12:08/mi
4:33:24
↑ 13↓ 160.2%
Finish· 26.22 mi
10:18/mi
4:43:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:46
Pace10:35 /mi
2nd Half
Distance13.11 mi
Time2:25:08
Pace11:04 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:0433:5210:5433:52
10:54
-
10K
6.21 mi12:28:071:06:5510:4633:03
10:38
-0:16
15K
9.32 mi13:00:261:39:1410:3932:19
10:24
-0:14
20K
12.43 mi13:32:492:11:3710:3532:23
10:25
+0:01
Half
13.11 mi13:39:582:18:4610:357:09
10:29
+0:04
25K
15.53 mi14:05:432:44:3110:3525:45
10:37
+0:08
30K
18.64 mi14:39:513:18:3910:3934:08
10:59
+0:22
20M
20.00 mi14:54:253:33:1310:4014:34
10:43
-0:16
21M
21.00 mi15:05:333:44:2110:4111:08
11:08
+0:25
35K
21.75 mi15:13:533:52:4110:428:20
11:08
0:00
23M
23.00 mi15:28:504:07:3810:4614:57
11:56
+0:48
24M
24.00 mi15:40:074:18:5510:4711:17
11:17
-0:39
40K
24.85 mi15:50:254:29:1310:5010:18
12:03
+0:46
25.2M
25.20 mi15:54:364:33:2410:514:11
12:08
+0:05
Finish
26.22 mi16:05:064:43:5410:5010:30
10:18
-1:50

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

10:18 /mi

Average Pace

10:50 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:14:28

90% of race

Time at Steady Pace

29:26

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:50 /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 mi11:55:0433:5210:5433:52
10:54
#25539
10K
6.21 mi12:28:071:06:5510:4633:03
10:38
#25205
15K
9.32 mi13:00:261:39:1410:3932:19
10:24
#24893
20K
12.43 mi13:32:492:11:3710:3532:23
10:25
#24570
Half
13.11 mi13:39:582:18:4610:357:09
10:29
#24553
25K
15.53 mi14:05:432:44:3110:3525:45
10:37
#24336
30K
18.64 mi14:39:513:18:3910:3934:08
10:59
#24078
20M
20.00 mi14:54:253:33:1310:4014:34
10:43
#23961
21M
21.00 mi15:05:333:44:2110:4111:08
11:08
#23835
35K
21.75 mi15:13:533:52:4110:428:20
11:08
#23824
23M
23.00 mi15:28:504:07:3810:4614:57
11:56
#23841
24M
24.00 mi15:40:074:18:5510:4711:17
11:17
#23839
40K
24.85 mi15:50:254:29:1310:5010:18
12:03
#23855
25.2M
25.20 mi15:54:364:33:2410:514:11
12:08
#23839
Finish
26.22 mi16:05:064:43:5410:5010:30
10:18
#23808
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25539107481074824287(Top 91%)10048(Top 88%)10048(Top 206%)
10K6.21 mi3.10 mi25205+33410545+20310545+20324928(Top 94%)10400(Top 91%)10400(Top 213%)
15K9.32 mi3.11 mi24893+31210381+16410381+16424287(Top 91%)10048(Top 88%)10048(Top 206%)
20K12.43 mi3.11 mi24570+32310215+16610215+16623701(Top 89%)9744(Top 85%)9744(Top 200%)
Half13.11 mi0.68 mi24553+1710206+910206+924184(Top 91%)10021(Top 88%)10021(Top 205%)
25K15.53 mi2.42 mi24336+21710095+11110095+11123390(Top 88%)9613(Top 84%)9613(Top 197%)
30K18.64 mi3.11 mi24078+2589960+1359960+13523082(Top 87%)9501(Top 83%)9501(Top 195%)
20M20.00 mi1.36 mi23961+1179901+599901+5922210(Top 83%)9103(Top 80%)9103(Top 186%)
21M21.00 mi1.00 mi23835+1269846+559846+5521123(Top 79%)8530(Top 75%)8530(Top 175%)
35K21.75 mi0.75 mi23824+119846984623554(Top 88%)9906(Top 87%)9906(Top 203%)
23M23.00 mi1.25 mi23841-179866-209866-2023922(Top 90%)10077(Top 88%)10077(Top 206%)
24M24.00 mi1.00 mi23839+29872-69872-623563(Top 89%)9926(Top 87%)9926(Top 203%)
40K24.85 mi0.85 mi23855-169888-169888-1623957(Top 90%)10159(Top 89%)10159(Top 208%)
25.2M25.20 mi0.35 mi23839+169881+79881+722755(Top 85%)9532(Top 83%)9532(Top 195%)
Finish26.22 mi1.02 mi23808+319872+99872+922577(Top 85%)9433(Top 83%)9433(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24287

Females

10048

F18-39

10048

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

24928

Females

10400

F18-39

10400

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24287

Females

10048

F18-39

10048

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23701

Females

9744

F18-39

9744

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24184

Females

10021

F18-39

10021

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23390

Females

9613

F18-39

9613

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23082

Females

9501

F18-39

9501

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22210

Females

9103

F18-39

9103

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

21123

Females

8530

F18-39

8530

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

23554

Females

9906

F18-39

9906

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

23922

Females

10077

F18-39

10077

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23563

Females

9926

F18-39

9926

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23957

Females

10159

F18-39

10159

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22755

Females

9532

F18-39

9532

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22577

Females

9433

F18-39

9433

Passing Analysis

Category:
Athletes Passed
2004
Passed By
273
Net Change
+1731
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25539
5K → 10K37642+334#25539#25205
10K → 15K32311+312#25205#24893
15K → 20K3307+323#24893#24570
20K → Half3922+17#24570#24553
Half → 25K2258+217#24553#24336
25K → 30K27214+258#24336#24078
30K → 20M1269+117#24078#23961
20M → 21M1326+126#23961#23835
21M → 35K3524+11#23835#23824
35K → 23M3148-17#23824#23841
23M → 24M3432+2#23841#23839
24M → 40K2238-16#23839#23855
40K → 25.2M215+16#23855#23839
25.2M → Finish387+31#23839#23808
TOTALS2004273+1731
📊

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