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BOSTON MARATHON 2023

Brianna Karan

Bib: 25029•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
9:41/mi
30:05
↑ 97↓ 3451.5%
10K· 6.21 mi
9:47/mi
1:00:29
↑ 79↓ 1380.4%
15K· 9.32 mi
10:04/mi
1:31:44
↑ 67↓ 78
20K· 12.43 mi
10:22/mi
2:03:56
↑ 106↓ 860.1%
Half· 13.11 mi
10:04/mi
2:10:48
↑ 19↓ 370.5%
25K· 15.53 mi
11:04/mi
2:37:37
↑ 66↓ 880.2%
30K· 18.64 mi
10:56/mi
3:11:35
↑ 181↓ 1480.2%
20M
10:55/mi
3:26:25
↑ 64↓ 500.2%
21M
11:38/mi
3:38:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:28/mi
3:45:53
↑ 17↓ 861.7%
23M
11:13/mi
3:59:56
↑ 23↓ 630.6%
24M
10:15/mi
4:10:11
↓ 821.3%
40K· 24.85 mi
10:30/mi
4:19:10
↓ 200.3%
25.2M
11:16/mi
4:23:03
↑ 13↓ 160.2%
Finish· 26.22 mi
9:57/mi
4:33:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:48
Pace9:59 /mi
2nd Half
Distance13.11 mi
Time2:22:23
Pace10:52 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0830:059:4130:05
9:41
-
10K
6.21 mi12:16:321:00:299:4430:24
9:47
+0:06
15K
9.32 mi12:47:471:31:449:5131:15
10:04
+0:17
20K
12.43 mi13:19:592:03:569:5832:12
10:22
+0:18
Half
13.11 mi13:26:512:10:489:596:52
10:04
-0:18
25K
15.53 mi13:53:402:37:3710:0926:49
11:04
+1:00
30K
18.64 mi14:27:383:11:3510:1733:58
10:56
-0:08
20M
20.00 mi14:42:283:26:2510:1914:50
10:55
-0:01
21M
21.00 mi14:54:063:38:0310:2311:38
11:38
+0:43
35K
21.75 mi15:01:563:45:5310:237:50
10:28
-1:10
23M
23.00 mi15:15:593:59:5610:2614:03
11:13
+0:45
24M
24.00 mi15:26:144:10:1110:2510:15
10:15
-0:58
40K
24.85 mi15:35:134:19:1010:268:59
10:30
+0:15
25.2M
25.20 mi15:39:064:23:0310:263:53
11:16
+0:46
Finish
26.22 mi15:49:144:33:1110:2610:08
9:57
-1:19

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

9:41 /mi

Average Pace

10:26 /mi

Slowest Pace

11:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:44

40% of race

Time at Steady Pace

59:16

22% of race

Time at Slower Pace

1:45:11

39% of race

Average Pace: 10:25 /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 mi11:46:0830:059:4130:05
9:41
#22614
10K
6.21 mi12:16:321:00:299:4430:24
9:47
#22994
15K
9.32 mi12:47:471:31:449:5131:15
10:04
#23242
20K
12.43 mi13:19:592:03:569:5832:12
10:22
#23366
Half
13.11 mi13:26:512:10:489:596:52
10:04
#23366
25K
15.53 mi13:53:402:37:3710:0926:49
11:04
#23502
30K
18.64 mi14:27:383:11:3510:1733:58
10:56
#23391
20M
20.00 mi14:42:283:26:2510:1914:50
10:55
#23326
21M
21.00 mi14:54:063:38:0310:2311:38
11:38
#23268
35K
21.75 mi15:01:563:45:5310:237:50
10:28
#23216
23M
23.00 mi15:15:593:59:5610:2614:03
11:13
#23210
24M
24.00 mi15:26:144:10:1110:2510:15
10:15
#23138
40K
24.85 mi15:35:134:19:1010:268:59
10:30
#23053
25.2M
25.20 mi15:39:064:23:0310:263:53
11:16
#23029
Finish
26.22 mi15:49:144:33:1110:2610:08
9:57
#22976
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi226149194919423620(Top 89%)9676(Top 85%)9676(Top 198%)
10K6.21 mi3.10 mi22994-3809359-1659359-16523241(Top 87%)9471(Top 83%)9471(Top 194%)
15K9.32 mi3.11 mi23242-2489482-1239482-12323620(Top 89%)9676(Top 85%)9676(Top 198%)
20K12.43 mi3.11 mi23366-1249537-559537-5523591(Top 89%)9683(Top 85%)9683(Top 198%)
Half13.11 mi0.68 mi233669541-49541-423411(Top 88%)9578(Top 84%)9578(Top 196%)
25K15.53 mi2.42 mi23502-1369620-799620-7924074(Top 90%)9991(Top 87%)9991(Top 205%)
30K18.64 mi3.11 mi23391+1119588+329588+3222993(Top 86%)9460(Top 83%)9460(Top 194%)
20M20.00 mi1.36 mi23326+659563+259563+2522560(Top 85%)9278(Top 81%)9278(Top 190%)
21M21.00 mi1.00 mi23268+589540+239540+2322136(Top 83%)9075(Top 79%)9075(Top 186%)
35K21.75 mi0.75 mi23216+529524+169524+1622344(Top 84%)9241(Top 81%)9241(Top 189%)
23M23.00 mi1.25 mi23210+69528-49528-422763(Top 86%)9470(Top 83%)9470(Top 194%)
24M24.00 mi1.00 mi23138+729500+289500+2821459(Top 81%)8827(Top 77%)8827(Top 181%)
40K24.85 mi0.85 mi23053+859472+289472+2821246(Top 80%)8749(Top 77%)8749(Top 179%)
25.2M25.20 mi0.35 mi23029+249454+189454+1821084(Top 79%)8643(Top 76%)8643(Top 177%)
Finish26.22 mi1.02 mi22976+539437+179437+1721627(Top 81%)8927(Top 78%)8927(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23620

Females

9676

F18-39

9676

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23241

Females

9471

F18-39

9471

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23620

Females

9676

F18-39

9676

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23591

Females

9683

F18-39

9683

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23411

Females

9578

F18-39

9578

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

24074

Females

9991

F18-39

9991

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

22993

Females

9460

F18-39

9460

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22560

Females

9278

F18-39

9278

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

22136

Females

9075

F18-39

9075

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22344

Females

9241

F18-39

9241

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22763

Females

9470

F18-39

9470

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21459

Females

8827

F18-39

8827

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21246

Females

8749

F18-39

8749

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21084

Females

8643

F18-39

8643

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21627

Females

8927

F18-39

8927

Passing Analysis

Category:
Athletes Passed
991
Passed By
1353
Net Change
-362
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22614
5K → 10K101481-380#22614#22994
10K → 15K61309-248#22994#23242
15K → 20K71195-124#23242#23366
20K → Half23230#23366#23366
Half → 25K45181-136#23366#23502
25K → 30K16756+111#23502#23391
30K → 20M8015+65#23391#23326
20M → 21M7416+58#23326#23268
21M → 35K608+52#23268#23216
35K → 23M4236+6#23216#23210
23M → 24M775+72#23210#23138
24M → 40K916+85#23138#23053
40K → 25.2M295+24#23053#23029
25.2M → Finish7017+53#23029#22976
TOTALS9911353-362
📊

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