Boston Marathon logo
BOSTON MARATHON 2023

Tracey Ullom

Bib: 27286•F

VT

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

Start
0:00:00
Race begins
5K· 3.11 mi
32:11
Rank: #24387
Start → 5K
32:11 | 10:22/mi
10K· 6.21 mi
1:03:28
Rank: #24094 (+293)
5K → 10K
31:17 | 10:04/mi
15K· 9.32 mi
1:34:53
Rank: #23956 (+138)
10K → 15K
31:25 | 10:07/mi
20K· 12.43 mi
2:07:14
Rank: #23891 (+65)
15K → 20K
32:21 | 10:25/mi
Half· 13.11 mi
2:14:15
Rank: #23886 (+5)
20K → Half
7:01 | 10:17/mi
25K· 15.53 mi
2:40:35
Rank: #23846 (+40)
Half → 25K
26:20 | 10:52/mi
30K· 18.64 mi
3:16:28
Rank: #23889 (-43)
25K → 30K
35:53 | 11:33/mi
20M
3:32:59
Rank: #23947 (-58)
30K → 20M
16:31 | 12:09/mi
21M
3:46:37
Rank: #24032 (-85)
20M → 21M
13:38 | 13:38/mi
35K· 21.75 mi
3:55:03
Rank: #24020 (+12)
21M → 35K
8:26 | 11:16/mi
23M
4:09:20
Rank: #23980 (+40)
35K → 23M
14:17 | 11:24/mi
24M
4:20:37
Rank: #23963 (+17)
23M → 24M
11:17 | 11:17/mi
40K· 24.85 mi
4:30:25
Rank: #23926 (+37)
24M → 40K
9:48 | 11:28/mi
25.2M
4:34:50
Rank: #23931 (-5)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
4:46:00
Rank: #23933 (-2)
25.2M → Finish
11:10 | 10:57/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
Time2:14:15
Pace10:14 /mi
2nd Half
Distance13.11 mi
Time2:31:45
Pace11:35 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2832:1110:2232:11
10:22
-
10K
6.21 mi12:20:451:03:2810:1331:17
10:04
-0:18
15K
9.32 mi12:52:101:34:5310:1131:25
10:07
+0:03
20K
12.43 mi13:24:312:07:1410:1432:21
10:25
+0:18
Half
13.11 mi13:31:322:14:1510:147:01
10:17
-0:08
25K
15.53 mi13:57:522:40:3510:2026:20
10:52
+0:35
30K
18.64 mi14:33:453:16:2810:3235:53
11:33
+0:41
20M
20.00 mi14:50:163:32:5910:3916:31
12:09
+0:36
21M
21.00 mi15:03:543:46:3710:4713:38
13:38
+1:29
35K
21.75 mi15:12:203:55:0310:488:26
11:16
-2:22
23M
23.00 mi15:26:374:09:2010:5014:17
11:24
+0:08
24M
24.00 mi15:37:544:20:3710:5211:17
11:17
-0:07
40K
24.85 mi15:47:424:30:2510:539:48
11:28
+0:11
25.2M
25.20 mi15:52:074:34:5010:544:25
12:48
+1:20
Finish
26.22 mi16:03:174:46:0010:5511:10
10:57
-1:51

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

10:04 /mi

Average Pace

10:55 /mi

Slowest Pace

13:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:15

47% of race

Time at Steady Pace

1:57:11

41% of race

Time at Slower Pace

34:34

12% of race

Average Pace: 10:54 /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 mi11:49:2832:1110:2232:11
10:22
#24387
10K
6.21 mi12:20:451:03:2810:1331:17
10:04
#24094
15K
9.32 mi12:52:101:34:5310:1131:25
10:07
#23956
20K
12.43 mi13:24:312:07:1410:1432:21
10:25
#23891
Half
13.11 mi13:31:322:14:1510:147:01
10:17
#23886
25K
15.53 mi13:57:522:40:3510:2026:20
10:52
#23846
30K
18.64 mi14:33:453:16:2810:3235:53
11:33
#23889
20M
20.00 mi14:50:163:32:5910:3916:31
12:09
#23947
21M
21.00 mi15:03:543:46:3710:4713:38
13:38
#24032
35K
21.75 mi15:12:203:55:0310:488:26
11:16
#24020
23M
23.00 mi15:26:374:09:2010:5014:17
11:24
#23980
24M
24.00 mi15:37:544:20:3710:5211:17
11:17
#23963
40K
24.85 mi15:47:424:30:2510:539:48
11:28
#23926
25.2M
25.20 mi15:52:074:34:5010:544:25
12:48
#23931
Finish
26.22 mi16:03:174:46:0010:5511:10
10:57
#23933
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24387100901009023721(Top 89%)9737(Top 85%)9737(Top 199%)
10K6.21 mi3.10 mi24094+2939945+1459945+14523841(Top 90%)9804(Top 86%)9804(Top 201%)
15K9.32 mi3.11 mi23956+1389867+789867+7823721(Top 89%)9737(Top 85%)9737(Top 199%)
20K12.43 mi3.11 mi23891+659826+419826+4123680(Top 89%)9733(Top 85%)9733(Top 199%)
Half13.11 mi0.68 mi23886+59822+49822+423842(Top 90%)9831(Top 86%)9831(Top 201%)
25K15.53 mi2.42 mi23846+409818+49818+423767(Top 89%)9832(Top 86%)9832(Top 201%)
30K18.64 mi3.11 mi23889-439855-379855-3723932(Top 90%)9979(Top 87%)9979(Top 204%)
20M20.00 mi1.36 mi23947-589892-379892-3724387(Top 92%)10280(Top 90%)10280(Top 210%)
21M21.00 mi1.00 mi24032-859960-689960-6824713(Top 93%)10460(Top 92%)10460(Top 214%)
35K21.75 mi0.75 mi24020+129953+79953+723771(Top 89%)10023(Top 88%)10023(Top 205%)
23M23.00 mi1.25 mi23980+409944+99944+923094(Top 87%)9639(Top 84%)9639(Top 197%)
24M24.00 mi1.00 mi23963+179944994423564(Top 89%)9927(Top 87%)9927(Top 203%)
40K24.85 mi0.85 mi23926+379933+119933+1123163(Top 87%)9746(Top 85%)9746(Top 200%)
25.2M25.20 mi0.35 mi23931-59938-59938-523737(Top 89%)10052(Top 88%)10052(Top 206%)
Finish26.22 mi1.02 mi23933-29942-49942-423897(Top 90%)10105(Top 88%)10105(Top 207%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23721

Females

9737

F18-39

9737

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

23841

Females

9804

F18-39

9804

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23721

Females

9737

F18-39

9737

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23680

Females

9733

F18-39

9733

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

23842

Females

9831

F18-39

9831

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

23767

Females

9832

F18-39

9832

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

23932

Females

9979

F18-39

9979

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24387

Females

10280

F18-39

10280

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

24713

Females

10460

F18-39

10460

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23771

Females

10023

F18-39

10023

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

23094

Females

9639

F18-39

9639

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

23564

Females

9927

F18-39

9927

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23163

Females

9746

F18-39

9746

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23737

Females

10052

F18-39

10052

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

23897

Females

10105

F18-39

10105

Passing Analysis

Category:
Athletes Passed
1190
Passed By
736
Net Change
+454
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24387
5K → 10K37380+293#24387#24094
10K → 15K20163+138#24094#23956
15K → 20K14782+65#23956#23891
20K → Half2823+5#23891#23886
Half → 25K10464+40#23886#23846
25K → 30K94137-43#23846#23889
30K → 20M2482-58#23889#23947
20M → 21M18103-85#23947#24032
21M → 35K2614+12#24032#24020
35K → 23M6020+40#24020#23980
23M → 24M3215+17#23980#23963
24M → 40K458+37#23963#23926
40K → 25.2M1419-5#23926#23931
25.2M → Finish2426-2#23931#23933
TOTALS1190736+454
📊

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