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BOSTON MARATHON 2023

Katelyn Carlberg

Bib: 16646•F

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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 23%
Division (F18-39)
#0 / 4884
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:02
Rank: #14404
Start → 5K
25:02 | 8:03/mi
10K· 6.21 mi
48:48
Rank: #13218 (+1186)
5K → 10K
23:46 | 7:39/mi
15K· 9.32 mi
1:12:25
Rank: #12397 (+821)
10K → 15K
23:37 | 7:36/mi
20K· 12.43 mi
1:36:17
Rank: #11945 (+452)
15K → 20K
23:52 | 7:41/mi
Half· 13.11 mi
1:41:36
Rank: #11988 (-43)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:00:40
Rank: #11884 (+104)
Half → 25K
19:04 | 7:52/mi
30K· 18.64 mi
2:25:29
Rank: #11646 (+238)
25K → 30K
24:49 | 7:59/mi
20M
2:36:22
Rank: #11521 (+125)
30K → 20M
10:53 | 8:01/mi
21M
2:44:45
Rank: #11381 (+140)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
2:50:41
Rank: #11374 (+7)
21M → 35K
5:56 | 7:56/mi
23M
3:00:55
Rank: #11348 (+26)
35K → 23M
10:14 | 8:10/mi
24M
3:08:48
Rank: #11301 (+47)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
3:15:32
Rank: #11185 (+116)
24M → 40K
6:44 | 7:53/mi
25.2M
3:18:30
Rank: #11151 (+34)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:26:27
Rank: #11116 (+35)
25.2M → Finish
7:57 | 7:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:36
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:44:51
Pace8:00 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2925:028:0325:02
8:03
-
10K
6.21 mi11:40:1548:487:5123:46
7:39
-0:24
15K
9.32 mi12:03:521:12:257:4623:37
7:36
-0:03
20K
12.43 mi12:27:441:36:177:4523:52
7:41
+0:05
Half
13.11 mi12:33:031:41:367:455:19
7:48
+0:07
25K
15.53 mi12:52:072:00:407:4619:04
7:52
+0:04
30K
18.64 mi13:16:562:25:297:4824:49
7:59
+0:07
20M
20.00 mi13:27:492:36:227:4910:53
8:01
+0:02
21M
21.00 mi13:36:122:44:457:518:23
8:23
+0:22
35K
21.75 mi13:42:082:50:417:515:56
7:56
-0:27
23M
23.00 mi13:52:223:00:557:5210:14
8:10
+0:14
24M
24.00 mi14:00:153:08:487:527:53
7:53
-0:17
40K
24.85 mi14:06:593:15:327:526:44
7:53
0:00
25.2M
25.20 mi14:09:573:18:307:532:58
8:36
+0:43
Finish
26.22 mi14:17:543:26:277:537:57
7:48
-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

7:36 /mi

Average Pace

7:53 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:06

95% of race

Time at Steady Pace

11:21

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi11:16:2925:028:0325:02
8:03
#14404
10K
6.21 mi11:40:1548:487:5123:46
7:39
#13218
15K
9.32 mi12:03:521:12:257:4623:37
7:36
#12397
20K
12.43 mi12:27:441:36:177:4523:52
7:41
#11945
Half
13.11 mi12:33:031:41:367:455:19
7:48
#11988
25K
15.53 mi12:52:072:00:407:4619:04
7:52
#11884
30K
18.64 mi13:16:562:25:297:4824:49
7:59
#11646
20M
20.00 mi13:27:492:36:227:4910:53
8:01
#11521
21M
21.00 mi13:36:122:44:457:518:23
8:23
#11381
35K
21.75 mi13:42:082:50:417:515:56
7:56
#11374
23M
23.00 mi13:52:223:00:557:5210:14
8:10
#11348
24M
24.00 mi14:00:153:08:487:527:53
7:53
#11301
40K
24.85 mi14:06:593:15:327:526:44
7:53
#11185
25.2M
25.20 mi14:09:573:18:307:532:58
8:36
#11151
Finish
26.22 mi14:17:543:26:277:537:57
7:48
#11116
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi144044268426811048(Top 41%)2377(Top 21%)2377(Top 49%)
10K6.21 mi3.10 mi13218+11863570+6983570+69811798(Top 44%)2757(Top 24%)2757(Top 56%)
15K9.32 mi3.11 mi12397+8213121+4493121+44911048(Top 41%)2377(Top 21%)2377(Top 49%)
20K12.43 mi3.11 mi11945+4522881+2402881+24010793(Top 41%)2311(Top 20%)2311(Top 47%)
Half13.11 mi0.68 mi11988-432911-302911-3012672(Top 48%)3278(Top 29%)3278(Top 67%)
25K15.53 mi2.42 mi11884+1042865+462865+4611650(Top 44%)2859(Top 25%)2859(Top 59%)
30K18.64 mi3.11 mi11646+2382773+922773+9210811(Top 41%)2549(Top 22%)2549(Top 52%)
20M20.00 mi1.36 mi11521+1252726+472726+4710361(Top 39%)2407(Top 21%)2407(Top 49%)
21M21.00 mi1.00 mi11381+1402661+652661+659770(Top 37%)2279(Top 20%)2279(Top 47%)
35K21.75 mi0.75 mi11374+72670-92670-911633(Top 44%)3212(Top 28%)3212(Top 66%)
23M23.00 mi1.25 mi11348+262688-182688-1811012(Top 41%)3022(Top 26%)3022(Top 62%)
24M24.00 mi1.00 mi11301+472678+102678+1010430(Top 39%)2796(Top 24%)2796(Top 57%)
40K24.85 mi0.85 mi11185+1162644+342644+349208(Top 35%)2270(Top 20%)2270(Top 46%)
25.2M25.20 mi0.35 mi11151+342642+22642+210218(Top 38%)2798(Top 24%)2798(Top 57%)
Finish26.22 mi1.02 mi11116+352649-72649-710704(Top 40%)3036(Top 27%)3036(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11048

Females

2377

F18-39

2377

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11798

Females

2757

F18-39

2757

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11048

Females

2377

F18-39

2377

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10793

Females

2311

F18-39

2311

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12672

Females

3278

F18-39

3278

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11650

Females

2859

F18-39

2859

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10811

Females

2549

F18-39

2549

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10361

Females

2407

F18-39

2407

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9770

Females

2279

F18-39

2279

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11633

Females

3212

F18-39

3212

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11012

Females

3022

F18-39

3022

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10430

Females

2796

F18-39

2796

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9208

Females

2270

F18-39

2270

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10218

Females

2798

F18-39

2798

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10704

Females

3036

F18-39

3036

Passing Analysis

Category:
Athletes Passed
3896
Passed By
608
Net Change
+3288
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14404
5K → 10K122640+1186#14404#13218
10K → 15K84827+821#13218#12397
15K → 20K47018+452#12397#11945
20K → Half1053-43#11945#11988
Half → 25K18884+104#11988#11884
25K → 30K30870+238#11884#11646
30K → 20M16338+125#11646#11521
20M → 21M16929+140#11521#11381
21M → 35K5851+7#11381#11374
35K → 23M10377+26#11374#11348
23M → 24M8336+47#11348#11301
24M → 40K13014+116#11301#11185
40K → 25.2M5117+34#11185#11151
25.2M → Finish8954+35#11151#11116
TOTALS3896608+3288
📊

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