Boston Marathon logo
BOSTON MARATHON 2023

Sakie Sullivan

Bib: 29607•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Division (F18-39)
#0 / 4884
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:08
Rank: #16963
Start → 5K
26:08 | 8:25/mi
10K· 6.21 mi
50:53
Rank: #15738 (+1225)
5K → 10K
24:45 | 7:58/mi
15K· 9.32 mi
1:15:06
Rank: #14802 (+936)
10K → 15K
24:13 | 7:48/mi
20K· 12.43 mi
1:39:45
Rank: #14296 (+506)
15K → 20K
24:39 | 7:56/mi
Half· 13.11 mi
1:45:07
Rank: #14249 (+47)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:04:19
Rank: #13894 (+355)
Half → 25K
19:12 | 7:55/mi
30K· 18.64 mi
2:29:20
Rank: #13382 (+512)
25K → 30K
25:01 | 8:03/mi
20M
2:40:24
Rank: #13206 (+176)
30K → 20M
11:04 | 8:09/mi
21M
2:49:02
Rank: #13050 (+156)
20M → 21M
8:38 | 8:38/mi
35K· 21.75 mi
2:54:53
Rank: #12957 (+93)
21M → 35K
5:51 | 7:49/mi
23M
3:05:07
Rank: #12836 (+121)
35K → 23M
10:14 | 8:10/mi
24M
3:13:04
Rank: #12717 (+119)
23M → 24M
7:57 | 7:57/mi
40K· 24.85 mi
3:19:57
Rank: #12631 (+86)
24M → 40K
6:53 | 8:03/mi
25.2M
3:22:56
Rank: #12592 (+39)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:30:41
Rank: #12446 (+146)
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⚖️ Balanced
Distance13.11 mi
Time1:45:07
Pace8:01 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:34
Pace8:03 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1426:088:2526:08
8:25
-
10K
6.21 mi12:14:5950:538:1124:45
7:58
-0:27
15K
9.32 mi12:39:121:15:068:0324:13
7:48
-0:10
20K
12.43 mi13:03:511:39:458:0224:39
7:56
+0:08
Half
13.11 mi13:09:131:45:078:015:22
7:52
-0:04
25K
15.53 mi13:28:252:04:198:0019:12
7:55
+0:03
30K
18.64 mi13:53:262:29:208:0125:01
8:03
+0:08
20M
20.00 mi14:04:302:40:248:0111:04
8:09
+0:06
21M
21.00 mi14:13:082:49:028:038:38
8:38
+0:29
35K
21.75 mi14:18:592:54:538:025:51
7:49
-0:49
23M
23.00 mi14:29:133:05:078:0310:14
8:10
+0:21
24M
24.00 mi14:37:103:13:048:037:57
7:57
-0:13
40K
24.85 mi14:44:033:19:578:036:53
8:03
+0:06
25.2M
25.20 mi14:47:023:22:568:032:59
8:39
+0:36
Finish
26.22 mi14:54:473:30:418:027:45
7:36
-1:03

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

7:36 /mi

Average Pace

8:02 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:56

82% of race

Time at Steady Pace

37:45

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:02 /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 mi11:50:1426:088:2526:08
8:25
#16963
10K
6.21 mi12:14:5950:538:1124:45
7:58
#15738
15K
9.32 mi12:39:121:15:068:0324:13
7:48
#14802
20K
12.43 mi13:03:511:39:458:0224:39
7:56
#14296
Half
13.11 mi13:09:131:45:078:015:22
7:52
#14249
25K
15.53 mi13:28:252:04:198:0019:12
7:55
#13894
30K
18.64 mi13:53:262:29:208:0125:01
8:03
#13382
20M
20.00 mi14:04:302:40:248:0111:04
8:09
#13206
21M
21.00 mi14:13:082:49:028:038:38
8:38
#13050
35K
21.75 mi14:18:592:54:538:025:51
7:49
#12957
23M
23.00 mi14:29:133:05:078:0310:14
8:10
#12836
24M
24.00 mi14:37:103:13:048:037:57
7:57
#12717
40K
24.85 mi14:44:033:19:578:036:53
8:03
#12631
25.2M
25.20 mi14:47:023:22:568:032:59
8:39
#12592
Finish
26.22 mi14:54:473:30:418:027:45
7:36
#12446
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi169635902590212704(Top 48%)3293(Top 29%)3293(Top 67%)
10K6.21 mi3.10 mi15738+12255117+7855117+78514541(Top 55%)4377(Top 38%)4377(Top 90%)
15K9.32 mi3.11 mi14802+9364539+5784539+57812704(Top 48%)3293(Top 29%)3293(Top 67%)
20K12.43 mi3.11 mi14296+5064252+2874252+28712910(Top 48%)3495(Top 31%)3495(Top 72%)
Half13.11 mi0.68 mi14249+474226+264226+2613340(Top 50%)3689(Top 32%)3689(Top 76%)
25K15.53 mi2.42 mi13894+3554051+1754051+17512071(Top 45%)3121(Top 27%)3121(Top 64%)
30K18.64 mi3.11 mi13382+5123769+2823769+28211335(Top 43%)2810(Top 25%)2810(Top 58%)
20M20.00 mi1.36 mi13206+1763685+843685+8411333(Top 43%)2907(Top 25%)2907(Top 60%)
21M21.00 mi1.00 mi13050+1563613+723613+7211285(Top 42%)3024(Top 26%)3024(Top 62%)
35K21.75 mi0.75 mi12957+933585+283585+2810862(Top 41%)2814(Top 25%)2814(Top 58%)
23M23.00 mi1.25 mi12836+1213529+563529+5611026(Top 41%)3036(Top 27%)3036(Top 62%)
24M24.00 mi1.00 mi12717+1193482+473482+4710924(Top 41%)3055(Top 27%)3055(Top 63%)
40K24.85 mi0.85 mi12631+863449+333449+3310413(Top 39%)2855(Top 25%)2855(Top 58%)
25.2M25.20 mi0.35 mi12592+393435+143435+1410534(Top 40%)2960(Top 26%)2960(Top 61%)
Finish26.22 mi1.02 mi12446+1463374+613374+619343(Top 35%)2401(Top 21%)2401(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12704

Females

3293

F18-39

3293

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14541

Females

4377

F18-39

4377

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12704

Females

3293

F18-39

3293

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

12910

Females

3495

F18-39

3495

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13340

Females

3689

F18-39

3689

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12071

Females

3121

F18-39

3121

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11335

Females

2810

F18-39

2810

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11333

Females

2907

F18-39

2907

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11285

Females

3024

F18-39

3024

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10862

Females

2814

F18-39

2814

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11026

Females

3036

F18-39

3036

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10924

Females

3055

F18-39

3055

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10413

Females

2855

F18-39

2855

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10534

Females

2960

F18-39

2960

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9343

Females

2401

F18-39

2401

Passing Analysis

Category:
Athletes Passed
4777
Passed By
260
Net Change
+4517
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16963
5K → 10K127550+1225#16963#15738
10K → 15K9426+936#15738#14802
15K → 20K52620+506#14802#14296
20K → Half5811+47#14296#14249
Half → 25K37419+355#14249#13894
25K → 30K52412+512#13894#13382
30K → 20M19115+176#13382#13206
20M → 21M18125+156#13206#13050
21M → 35K10411+93#13050#12957
35K → 23M15332+121#12957#12836
23M → 24M13415+119#12836#12717
24M → 40K10822+86#12717#12631
40K → 25.2M478+39#12631#12592
25.2M → Finish16014+146#12592#12446
TOTALS4777260+4517
📊

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