Boston Marathon logo
BOSTON MARATHON 2023

Sarah Buckliew

Bib: 12302•F

SC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 10%
Division (F18-39)
#0 / 4884
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:21
Rank: #9763
Start → 5K
23:21 | 7:31/mi
10K· 6.21 mi
46:14
Rank: #9505 (+258)
5K → 10K
22:53 | 7:22/mi
15K· 9.32 mi
1:08:59
Rank: #9191 (+314)
10K → 15K
22:45 | 7:19/mi
20K· 12.43 mi
1:31:39
Rank: #8809 (+382)
15K → 20K
22:40 | 7:18/mi
Half· 13.11 mi
1:36:33
Rank: #8749 (+60)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:54:09
Rank: #8428 (+321)
Half → 25K
17:36 | 7:16/mi
30K· 18.64 mi
2:17:23
Rank: #8149 (+279)
25K → 30K
23:14 | 7:29/mi
20M
2:27:39
Rank: #8036 (+113)
30K → 20M
10:16 | 7:33/mi
21M
2:35:42
Rank: #7990 (+46)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:41:02
Rank: #7887 (+103)
21M → 35K
5:20 | 7:08/mi
23M
2:50:30
Rank: #7789 (+98)
35K → 23M
9:28 | 7:34/mi
24M
2:57:50
Rank: #7700 (+89)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
3:04:15
Rank: #7638 (+62)
24M → 40K
6:25 | 7:30/mi
25.2M
3:07:00
Rank: #7611 (+27)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:14:25
Rank: #7566 (+45)
25.2M → Finish
7:25 | 7:17/mi

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
Time1:36:33
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:37:52
Pace7:28 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0223:217:3123:21
7:31
-
10K
6.21 mi11:13:5546:147:2622:53
7:22
-0:09
15K
9.32 mi11:36:401:08:597:2422:45
7:19
-0:03
20K
12.43 mi11:59:201:31:397:2222:40
7:18
-0:01
Half
13.11 mi12:04:141:36:337:224:54
7:11
-0:07
25K
15.53 mi12:21:501:54:097:2117:36
7:16
+0:05
30K
18.64 mi12:45:042:17:237:2223:14
7:29
+0:13
20M
20.00 mi12:55:202:27:397:2310:16
7:33
+0:04
21M
21.00 mi13:03:232:35:427:258:03
8:03
+0:30
35K
21.75 mi13:08:432:41:027:245:20
7:08
-0:55
23M
23.00 mi13:18:112:50:307:259:28
7:34
+0:26
24M
24.00 mi13:25:312:57:507:257:20
7:20
-0:14
40K
24.85 mi13:31:563:04:157:256:25
7:30
+0:10
25.2M
25.20 mi13:34:413:07:007:252:45
7:58
+0:28
Finish
26.22 mi13:42:063:14:257:257:25
7:17
-0:41

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

7:08 /mi

Average Pace

7:25 /mi

Slowest Pace

8:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:37

94% of race

Time at Steady Pace

10:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:51:0223:217:3123:21
7:31
#9763
10K
6.21 mi11:13:5546:147:2622:53
7:22
#9505
15K
9.32 mi11:36:401:08:597:2422:45
7:19
#9191
20K
12.43 mi11:59:201:31:397:2222:40
7:18
#8809
Half
13.11 mi12:04:141:36:337:224:54
7:11
#8749
25K
15.53 mi12:21:501:54:097:2117:36
7:16
#8428
30K
18.64 mi12:45:042:17:237:2223:14
7:29
#8149
20M
20.00 mi12:55:202:27:397:2310:16
7:33
#8036
21M
21.00 mi13:03:232:35:427:258:03
8:03
#7990
35K
21.75 mi13:08:432:41:027:245:20
7:08
#7887
23M
23.00 mi13:18:112:50:307:259:28
7:34
#7789
24M
24.00 mi13:25:312:57:507:257:20
7:20
#7700
40K
24.85 mi13:31:563:04:157:256:25
7:30
#7638
25.2M
25.20 mi13:34:413:07:007:252:45
7:58
#7611
Finish
26.22 mi13:42:063:14:257:257:25
7:17
#7566
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9763173517358752(Top 33%)1342(Top 12%)1342(Top 27%)
10K6.21 mi3.10 mi9505+2581612+1231612+1239359(Top 35%)1565(Top 14%)1565(Top 32%)
15K9.32 mi3.11 mi9191+3141498+1141498+1148752(Top 33%)1342(Top 12%)1342(Top 27%)
20K12.43 mi3.11 mi8809+3821357+1411357+1417768(Top 29%)1022(Top 9%)1022(Top 21%)
Half13.11 mi0.68 mi8749+601337+201337+207791(Top 29%)1011(Top 9%)1011(Top 21%)
25K15.53 mi2.42 mi8428+3211231+1061231+1067036(Top 26%)851(Top 7%)851(Top 17%)
30K18.64 mi3.11 mi8149+2791175+561175+567080(Top 27%)950(Top 8%)950(Top 19%)
20M20.00 mi1.36 mi8036+1131145+301145+307207(Top 27%)1099(Top 10%)1099(Top 23%)
21M21.00 mi1.00 mi7990+461144+11144+17700(Top 29%)1385(Top 12%)1385(Top 28%)
35K21.75 mi0.75 mi7887+1031116+281116+286135(Top 23%)806(Top 7%)806(Top 17%)
23M23.00 mi1.25 mi7789+981105+111105+116826(Top 26%)1109(Top 10%)1109(Top 23%)
24M24.00 mi1.00 mi7700+891091+141091+146641(Top 25%)1123(Top 10%)1123(Top 23%)
40K24.85 mi0.85 mi7638+621089+21089+26784(Top 25%)1269(Top 11%)1269(Top 26%)
25.2M25.20 mi0.35 mi7611+271092-31092-36410(Top 24%)1194(Top 10%)1194(Top 24%)
Finish26.22 mi1.02 mi7566+451099-71099-76994(Top 26%)1421(Top 12%)1421(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8752

Females

1342

F18-39

1342

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9359

Females

1565

F18-39

1565

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8752

Females

1342

F18-39

1342

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7768

Females

1022

F18-39

1022

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7791

Females

1011

F18-39

1011

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7036

Females

851

F18-39

851

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7080

Females

950

F18-39

950

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7207

Females

1099

F18-39

1099

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7700

Females

1385

F18-39

1385

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6135

Females

806

F18-39

806

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6826

Females

1109

F18-39

1109

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6641

Females

1123

F18-39

1123

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6784

Females

1269

F18-39

1269

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6410

Females

1194

F18-39

1194

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6994

Females

1421

F18-39

1421

Passing Analysis

Category:
Athletes Passed
2678
Passed By
481
Net Change
+2197
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9763
5K → 10K446188+258#9763#9505
10K → 15K35339+314#9505#9191
15K → 20K39614+382#9191#8809
20K → Half622+60#8809#8749
Half → 25K3221+321#8749#8428
25K → 30K29920+279#8428#8149
30K → 20M14229+113#8149#8036
20M → 21M9246+46#8036#7990
21M → 35K11310+103#7990#7887
35K → 23M12426+98#7887#7789
23M → 24M11223+89#7789#7700
24M → 40K9129+62#7700#7638
40K → 25.2M3912+27#7638#7611
25.2M → Finish8742+45#7611#7566
TOTALS2678481+2197
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing