Boston Marathon logo
BOSTON MARATHON 2023

Sarah Buckley

Bib: 31162•F

MA

0:00
0:00
/ mi
Be the first to cheer!
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
10:47/mi
33:30
↑ 97↓ 3451.5%
10K· 6.21 mi
10:19/mi
1:05:32
↑ 79↓ 1380.4%
15K· 9.32 mi
10:11/mi
1:37:10
↑ 67↓ 78
20K· 12.43 mi
10:38/mi
2:10:13
↑ 106↓ 860.1%
Half· 13.11 mi
10:32/mi
2:17:24
↑ 19↓ 370.5%
25K· 15.53 mi
10:40/mi
2:43:16
↑ 66↓ 880.2%
30K· 18.64 mi
11:58/mi
3:20:26
↑ 181↓ 1480.2%
20M
11:43/mi
3:36:22
↑ 64↓ 500.2%
21M
12:43/mi
3:49:05
↑ 106↓ 241.6%
35K· 21.75 mi
11:16/mi
3:57:31
↑ 17↓ 861.7%
23M
12:00/mi
4:12:33
↑ 23↓ 630.6%
24M
12:02/mi
4:24:35
↓ 821.3%
40K· 24.85 mi
11:34/mi
4:34:28
↓ 200.3%
25.2M
11:56/mi
4:38:35
↑ 13↓ 160.2%
Finish· 26.22 mi
10:46/mi
4:49:33
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:24
Pace10:29 /mi
2nd Half
Distance13.11 mi
Time2:32:09
Pace11:36 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3633:3010:4733:30
10:47
-
10K
6.21 mi12:25:381:05:3210:3332:02
10:19
-0:28
15K
9.32 mi12:57:161:37:1010:2531:38
10:11
-0:08
20K
12.43 mi13:30:192:10:1310:2933:03
10:38
+0:27
Half
13.11 mi13:37:302:17:2410:297:11
10:32
-0:06
25K
15.53 mi14:03:222:43:1610:3125:52
10:40
+0:08
30K
18.64 mi14:40:323:20:2610:4537:10
11:58
+1:18
20M
20.00 mi14:56:283:36:2210:4915:56
11:43
-0:15
21M
21.00 mi15:09:113:49:0510:5512:43
12:43
+1:00
35K
21.75 mi15:17:373:57:3110:558:26
11:16
-1:27
23M
23.00 mi15:32:394:12:3310:5915:02
12:00
+0:44
24M
24.00 mi15:44:414:24:3511:0112:02
12:02
+0:02
40K
24.85 mi15:54:344:34:2811:039:53
11:34
-0:28
25.2M
25.20 mi15:58:414:38:3511:034:07
11:56
+0:22
Finish
26.22 mi16:09:394:49:3311:0310:58
10:46
-1:10

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

10:11 /mi

Average Pace

11:03 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:14

60% of race

Time at Steady Pace

18:19

6% of race

Time at Slower Pace

1:37:00

34% of race

Average Pace: 11:03 /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 mi11:53:3633:3010:4733:30
10:47
#25347
10K
6.21 mi12:25:381:05:3210:3332:02
10:19
#24792
15K
9.32 mi12:57:161:37:1010:2531:38
10:11
#24493
20K
12.43 mi13:30:192:10:1310:2933:03
10:38
#24381
Half
13.11 mi13:37:302:17:2410:297:11
10:32
#24372
25K
15.53 mi14:03:222:43:1610:3125:52
10:40
#24187
30K
18.64 mi14:40:323:20:2610:4537:10
11:58
#24262
20M
20.00 mi14:56:283:36:2210:4915:56
11:43
#24234
21M
21.00 mi15:09:113:49:0510:5512:43
12:43
#24205
35K
21.75 mi15:17:373:57:3110:558:26
11:16
#24195
23M
23.00 mi15:32:394:12:3310:5915:02
12:00
#24203
24M
24.00 mi15:44:414:24:3511:0112:02
12:02
#24230
40K
24.85 mi15:54:344:34:2811:039:53
11:34
#24189
25.2M
25.20 mi15:58:414:38:3511:034:07
11:56
#24162
Finish
26.22 mi16:09:394:49:3311:0310:58
10:46
#24143
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25347106391063923837(Top 90%)9807(Top 86%)9807(Top 201%)
10K6.21 mi3.10 mi24792+55510318+32110318+32124322(Top 91%)10071(Top 88%)10071(Top 206%)
15K9.32 mi3.11 mi24493+29910159+15910159+15923837(Top 90%)9807(Top 86%)9807(Top 201%)
20K12.43 mi3.11 mi24381+11210109+5010109+5024084(Top 90%)9959(Top 87%)9959(Top 204%)
Half13.11 mi0.68 mi24372+910107+210107+224272(Top 91%)10076(Top 88%)10076(Top 206%)
25K15.53 mi2.42 mi24187+18510007+10010007+10023469(Top 88%)9653(Top 85%)9653(Top 198%)
30K18.64 mi3.11 mi24262-7510078-7110078-7124453(Top 92%)10251(Top 90%)10251(Top 210%)
20M20.00 mi1.36 mi24234+2810068+1010068+1023856(Top 90%)9996(Top 88%)9996(Top 205%)
21M21.00 mi1.00 mi24205+2910065+310065+323738(Top 89%)9946(Top 87%)9946(Top 204%)
35K21.75 mi0.75 mi24195+1010064+110064+123772(Top 89%)10024(Top 88%)10024(Top 205%)
23M23.00 mi1.25 mi24203-810077-1310077-1324020(Top 90%)10139(Top 89%)10139(Top 208%)
24M24.00 mi1.00 mi24230-2710097-2010097-2024582(Top 92%)10478(Top 92%)10478(Top 215%)
40K24.85 mi0.85 mi24189+4110079+1810079+1823309(Top 88%)9831(Top 86%)9831(Top 201%)
25.2M25.20 mi0.35 mi24162+2710069+1010069+1022422(Top 84%)9370(Top 82%)9370(Top 192%)
Finish26.22 mi1.02 mi24143+1910066+310066+323550(Top 88%)9936(Top 87%)9936(Top 203%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23837

Females

9807

F18-39

9807

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24322

Females

10071

F18-39

10071

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23837

Females

9807

F18-39

9807

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

24084

Females

9959

F18-39

9959

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24272

Females

10076

F18-39

10076

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23469

Females

9653

F18-39

9653

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24453

Females

10251

F18-39

10251

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23856

Females

9996

F18-39

9996

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

23738

Females

9946

F18-39

9946

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23772

Females

10024

F18-39

10024

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

24020

Females

10139

F18-39

10139

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24582

Females

10478

F18-39

10478

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23309

Females

9831

F18-39

9831

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22422

Females

9370

F18-39

9370

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23550

Females

9936

F18-39

9936

Passing Analysis

Category:
Athletes Passed
1681
Passed By
477
Net Change
+1204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25347
5K → 10K58429+555#25347#24792
10K → 15K31819+299#24792#24493
15K → 20K16856+112#24493#24381
20K → Half2415+9#24381#24372
Half → 25K19712+185#24372#24187
25K → 30K87162-75#24187#24262
30K → 20M6133+28#24262#24234
20M → 21M5829+29#24234#24205
21M → 35K2111+10#24205#24195
35K → 23M3038-8#24195#24203
23M → 24M1643-27#24203#24230
24M → 40K509+41#24230#24189
40K → 25.2M336+27#24189#24162
25.2M → Finish3415+19#24162#24143
TOTALS1681477+1204
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing