Boston Marathon logo
BOSTON MARATHON 2023

Sarah Barrett

Bib: 31775•F

CT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 41%
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
25:44
Rank: #16021
Start → 5K
25:44 | 8:17/mi
10K· 6.21 mi
50:18
Rank: #15079 (+942)
5K → 10K
24:34 | 7:54/mi
15K· 9.32 mi
1:14:47
Rank: #14518 (+561)
10K → 15K
24:29 | 7:53/mi
20K· 12.43 mi
1:39:23
Rank: #14080 (+438)
15K → 20K
24:36 | 7:55/mi
Half· 13.11 mi
1:44:38
Rank: #13959 (+121)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:03:38
Rank: #13538 (+421)
Half → 25K
19:00 | 7:50/mi
30K· 18.64 mi
2:28:01
Rank: #12821 (+717)
25K → 30K
24:23 | 7:51/mi
20M
2:38:34
Rank: #12448 (+373)
30K → 20M
10:33 | 7:46/mi
21M
2:46:45
Rank: #12186 (+262)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:52:18
Rank: #12011 (+175)
21M → 35K
5:33 | 7:25/mi
23M
3:01:51
Rank: #11696 (+315)
35K → 23M
9:33 | 7:38/mi
24M
3:09:13
Rank: #11445 (+251)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
3:15:36
Rank: #11211 (+234)
24M → 40K
6:23 | 7:28/mi
25.2M
3:18:23
Rank: #11113 (+98)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:26:08
Rank: #11022 (+91)
25.2M → Finish
7:45 | 7:36/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 Half
Distance13.11 mi
Time1:44:38
Pace7:59 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:41:30
Pace7:45 /mi
📊Negative Split: 3.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2725:448:1725:44
8:17
-
10K
6.21 mi12:09:0150:188:0624:34
7:54
-0:23
15K
9.32 mi12:33:301:14:478:0124:29
7:53
-0:01
20K
12.43 mi12:58:061:39:238:0024:36
7:55
+0:02
Half
13.11 mi13:03:211:44:387:595:15
7:42
-0:13
25K
15.53 mi13:22:212:03:387:5819:00
7:50
+0:08
30K
18.64 mi13:46:442:28:017:5624:23
7:51
+0:01
20M
20.00 mi13:57:172:38:347:5610:33
7:46
-0:05
21M
21.00 mi14:05:282:46:457:568:11
8:11
+0:25
35K
21.75 mi14:11:012:52:187:555:33
7:25
-0:46
23M
23.00 mi14:20:343:01:517:549:33
7:38
+0:13
24M
24.00 mi14:27:563:09:137:537:22
7:22
-0:16
40K
24.85 mi14:34:193:15:367:526:23
7:28
+0:06
25.2M
25.20 mi14:37:063:18:237:522:47
8:04
+0:36
Finish
26.22 mi14:44:513:26:087:527:45
7:36
-0:28

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

7:22 /mi

Average Pace

7:52 /mi

Slowest Pace

8:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:13

84% of race

Time at Steady Pace

33:55

16% 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 mi11:44:2725:448:1725:44
8:17
#16021
10K
6.21 mi12:09:0150:188:0624:34
7:54
#15079
15K
9.32 mi12:33:301:14:478:0124:29
7:53
#14518
20K
12.43 mi12:58:061:39:238:0024:36
7:55
#14080
Half
13.11 mi13:03:211:44:387:595:15
7:42
#13959
25K
15.53 mi13:22:212:03:387:5819:00
7:50
#13538
30K
18.64 mi13:46:442:28:017:5624:23
7:51
#12821
20M
20.00 mi13:57:172:38:347:5610:33
7:46
#12448
21M
21.00 mi14:05:282:46:457:568:11
8:11
#12186
35K
21.75 mi14:11:012:52:187:555:33
7:25
#12011
23M
23.00 mi14:20:343:01:517:549:33
7:38
#11696
24M
24.00 mi14:27:563:09:137:537:22
7:22
#11445
40K
24.85 mi14:34:193:15:367:526:23
7:28
#11211
25.2M
25.20 mi14:37:063:18:237:522:47
8:04
#11113
Finish
26.22 mi14:44:513:26:087:527:45
7:36
#11022
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160215294529413356(Top 50%)3694(Top 32%)3694(Top 76%)
10K6.21 mi3.10 mi15079+9424694+6004694+60014048(Top 53%)4072(Top 36%)4072(Top 83%)
15K9.32 mi3.11 mi14518+5614360+3344360+33413356(Top 50%)3694(Top 32%)3694(Top 76%)
20K12.43 mi3.11 mi14080+4384132+2284132+22812768(Top 48%)3417(Top 30%)3417(Top 70%)
Half13.11 mi0.68 mi13959+1214060+724060+7211893(Top 45%)2845(Top 25%)2845(Top 58%)
25K15.53 mi2.42 mi13538+4213825+2353825+23511405(Top 43%)2717(Top 24%)2717(Top 56%)
30K18.64 mi3.11 mi12821+7173444+3813444+3819748(Top 37%)2045(Top 18%)2045(Top 42%)
20M20.00 mi1.36 mi12448+3733238+2063238+2068623(Top 32%)1656(Top 14%)1656(Top 34%)
21M21.00 mi1.00 mi12186+2623112+1263112+1268559(Top 32%)1747(Top 15%)1747(Top 36%)
35K21.75 mi0.75 mi12011+1753031+813031+818008(Top 30%)1515(Top 13%)1515(Top 31%)
23M23.00 mi1.25 mi11696+3152876+1552876+1557314(Top 27%)1311(Top 11%)1311(Top 27%)
24M24.00 mi1.00 mi11445+2512759+1172759+1176883(Top 26%)1240(Top 11%)1240(Top 25%)
40K24.85 mi0.85 mi11211+2342661+982661+986566(Top 25%)1202(Top 11%)1202(Top 25%)
25.2M25.20 mi0.35 mi11113+982620+412620+417027(Top 26%)1450(Top 13%)1450(Top 30%)
Finish26.22 mi1.02 mi11022+912608+122608+129333(Top 35%)2391(Top 21%)2391(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13356

Females

3694

F18-39

3694

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14048

Females

4072

F18-39

4072

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13356

Females

3694

F18-39

3694

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

12768

Females

3417

F18-39

3417

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

11893

Females

2845

F18-39

2845

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11405

Females

2717

F18-39

2717

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9748

Females

2045

F18-39

2045

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8623

Females

1656

F18-39

1656

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8559

Females

1747

F18-39

1747

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8008

Females

1515

F18-39

1515

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7314

Females

1311

F18-39

1311

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6883

Females

1240

F18-39

1240

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6566

Females

1202

F18-39

1202

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7027

Females

1450

F18-39

1450

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9333

Females

2391

F18-39

2391

Passing Analysis

Category:
Athletes Passed
5157
Passed By
158
Net Change
+4999
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16021
5K → 10K99957+942#16021#15079
10K → 15K58827+561#15079#14518
15K → 20K46325+438#14518#14080
20K → Half1210+121#14080#13959
Half → 25K4254+421#13959#13538
25K → 30K7247+717#13538#12821
30K → 20M3785+373#12821#12448
20M → 21M2664+262#12448#12186
21M → 35K1750+175#12186#12011
35K → 23M3161+315#12011#11696
23M → 24M2510+251#11696#11445
24M → 40K2351+234#11445#11211
40K → 25.2M991+98#11211#11113
25.2M → Finish11726+91#11113#11022
TOTALS5157158+4999
📊

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