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BOSTON MARATHON 2023

Claire Bukata

Bib: 12569•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
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
7:33/mi
23:26
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
46:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:09:16
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:32:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:37:19
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:55:22
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:19:32
↑ 181↓ 1480.2%
20M
7:51/mi
2:30:12
↑ 64↓ 500.2%
21M
8:25/mi
2:38:37
↑ 106↓ 241.6%
35K· 21.75 mi
13:01/mi
2:48:21
↑ 17↓ 861.7%
23M
7:59/mi
2:58:21
↑ 23↓ 630.6%
24M
7:50/mi
3:06:11
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:13:08
↓ 200.3%
25.2M
8:45/mi
3:16:09
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:24:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:19
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:46:51
Pace8:09 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2423:267:3323:26
7:33
-
10K
6.21 mi11:14:1046:127:2622:46
7:20
-0:13
15K
9.32 mi11:37:141:09:167:2623:04
7:25
+0:05
20K
12.43 mi12:00:161:32:187:2623:02
7:25
0:00
Half
13.11 mi12:05:171:37:197:255:01
7:21
-0:04
25K
15.53 mi12:23:201:55:227:2618:03
7:27
+0:06
30K
18.64 mi12:47:302:19:327:2924:10
7:47
+0:20
20M
20.00 mi12:58:102:30:127:3110:40
7:51
+0:04
21M
21.00 mi13:06:352:38:377:338:25
8:25
+0:34
35K
21.75 mi13:16:192:48:217:449:44
13:01
+4:36
23M
23.00 mi13:26:192:58:217:4510:00
7:59
-5:02
24M
24.00 mi13:34:093:06:117:457:50
7:50
-0:09
40K
24.85 mi13:41:063:13:087:466:57
8:08
+0:18
25.2M
25.20 mi13:44:073:16:097:473:01
8:45
+0:37
Finish
26.22 mi13:52:083:24:107:488:01
7:52
-0:53

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

7:20 /mi

Average Pace

7:48 /mi

Slowest Pace

13:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:11:25

94% of race

Time at Slower Pace

12:45

6% of race

Average Pace: 7:47 /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 mi10:51:2423:267:3323:26
7:33
#10026
10K
6.21 mi11:14:1046:127:2622:46
7:20
#9463
15K
9.32 mi11:37:141:09:167:2623:04
7:25
#9447
20K
12.43 mi12:00:161:32:187:2623:02
7:25
#9209
Half
13.11 mi12:05:171:37:197:255:01
7:21
#9203
25K
15.53 mi12:23:201:55:227:2618:03
7:27
#9036
30K
18.64 mi12:47:302:19:327:2924:10
7:47
#9058
20M
20.00 mi12:58:102:30:127:3110:40
7:51
#9026
21M
21.00 mi13:06:352:38:377:338:25
8:25
#9051
35K
21.75 mi13:16:192:48:217:449:44
13:01
#10511
23M
23.00 mi13:26:192:58:217:4510:00
7:59
#10435
24M
24.00 mi13:34:093:06:117:457:50
7:50
#10404
40K
24.85 mi13:41:063:13:087:466:57
8:08
#10404
25.2M
25.20 mi13:44:073:16:097:473:01
8:45
#10395
Finish
26.22 mi13:52:083:24:107:488:01
7:52
#10407
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10026187518759574(Top 36%)1655(Top 14%)1655(Top 34%)
10K6.21 mi3.10 mi9463+5631595+2801595+2809083(Top 34%)1447(Top 13%)1447(Top 30%)
15K9.32 mi3.11 mi9447+161597-21597-29574(Top 36%)1655(Top 14%)1655(Top 34%)
20K12.43 mi3.11 mi9209+2381517+801517+808638(Top 32%)1352(Top 12%)1352(Top 28%)
Half13.11 mi0.68 mi9203+61520-31520-39116(Top 34%)1540(Top 13%)1540(Top 32%)
25K15.53 mi2.42 mi9036+1671459+611459+618385(Top 31%)1326(Top 12%)1326(Top 27%)
30K18.64 mi3.11 mi9058-221511-521511-529213(Top 35%)1805(Top 16%)1805(Top 37%)
20M20.00 mi1.36 mi9026+321516-51516-59257(Top 35%)1916(Top 17%)1916(Top 39%)
21M21.00 mi1.00 mi9051-251550-341550-349986(Top 38%)2378(Top 21%)2378(Top 49%)
35K21.75 mi0.75 mi10511-14602222-6722222-67225563(Top 96%)10924(Top 96%)10924(Top 224%)
23M23.00 mi1.25 mi10435+762215+72215+79678(Top 36%)2342(Top 21%)2342(Top 48%)
24M24.00 mi1.00 mi10404+312229-142229-1410052(Top 38%)2621(Top 23%)2621(Top 54%)
40K24.85 mi0.85 mi104042259-302259-3010905(Top 41%)3091(Top 27%)3091(Top 63%)
25.2M25.20 mi0.35 mi10395+92270-112270-1111053(Top 42%)3211(Top 28%)3211(Top 66%)
Finish26.22 mi1.02 mi10407-122298-282298-2811169(Top 42%)3275(Top 29%)3275(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9574

Females

1655

F18-39

1655

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9083

Females

1447

F18-39

1447

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9574

Females

1655

F18-39

1655

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8638

Females

1352

F18-39

1352

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9116

Females

1540

F18-39

1540

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8385

Females

1326

F18-39

1326

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9213

Females

1805

F18-39

1805

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9257

Females

1916

F18-39

1916

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

9986

Females

2378

F18-39

2378

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25563

Females

10924

F18-39

10924

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9678

Females

2342

F18-39

2342

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10052

Females

2621

F18-39

2621

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10905

Females

3091

F18-39

3091

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11053

Females

3211

F18-39

3211

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11169

Females

3275

F18-39

3275

Passing Analysis

Category:
Athletes Passed
2032*
Passed By
2411
Net Change
-381
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10026
5K → 10K661*98+563#10026#9463
10K → 15K163147+16#9463#9447
15K → 20K27840+238#9447#9209
20K → Half2620+6#9209#9203
Half → 25K20235+167#9203#9036
25K → 30K152174-22#9036#9058
30K → 20M10472+32#9058#9026
20M → 21M7297-25#9026#9051
21M → 35K01458-1460#9051#10511
35K → 23M11943+76#10511#10435
23M → 24M7645+31#10435#10404
24M → 40K72720#10404#10404
40K → 25.2M3627+9#10404#10395
25.2M → Finish7183-12#10395#10407
TOTALS2032*2411-381

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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