Boston Marathon logo
BOSTON MARATHON 2023

Lori Harley

Bib: 22847•F

SD

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:22
Rank: #17485
Start → 5K
8:29/mi
26:22 split
10K· 6.21 mi
52:59
Rank: #18073 (-588)
5K → 10K
8:34/mi
26:37 split
15K· 9.32 mi
1:19:38
Rank: #18134 (-61)
10K → 15K
8:35/mi
26:39 split
20K· 12.43 mi
1:46:50
Rank: #18186 (-52)
15K → 20K
8:45/mi
27:12 split
Half· 13.11 mi
1:52:36
Rank: #18142 (+44)
20K → Half
8:27/mi
5:46 split
25K· 15.53 mi
2:13:28
Rank: #17902 (+240)
Half → 25K
8:36/mi
20:52 split
30K· 18.64 mi
2:41:01
Rank: #17591 (+311)
25K → 30K
8:52/mi
27:33 split
20M
2:54:41
Rank: #17930 (-339)
30K → 20M
10:03/mi
13:40 split
21M
3:04:38
Rank: #17933 (-3)
20M → 21M
9:57/mi
9:57 split
35K· 21.75 mi
3:12:16
Rank: #18175 (-242)
21M → 35K
10:12/mi
7:38 split
23M
3:23:54
Rank: #18132 (+43)
35K → 23M
9:17/mi
11:38 split
24M
3:32:56
Rank: #18110 (+22)
23M → 24M
9:02/mi
9:02 split
40K· 24.85 mi
3:40:58
Rank: #18104 (+6)
24M → 40K
9:24/mi
8:02 split
25.2M
3:44:24
Rank: #18095 (+9)
40K → 25.2M
9:57/mi
3:26 split
Finish· 26.22 mi
3:53:23
Rank: #18062 (+33)
25.2M → Finish
8:49/mi
8:59 split

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
Time1:52:36
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:00:47
Pace9:13 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3026:228:2926:22
8:29
-
10K
6.21 mi11:50:0752:598:3226:37
8:34
+0:05
15K
9.32 mi12:16:461:19:388:3326:39
8:35
+0:01
20K
12.43 mi12:43:581:46:508:3627:12
8:45
+0:10
Half
13.11 mi12:49:441:52:368:355:46
8:27
-0:18
25K
15.53 mi13:10:362:13:288:3620:52
8:36
+0:09
30K
18.64 mi13:38:092:41:018:3827:33
8:52
+0:16
20M
20.00 mi13:51:492:54:418:4413:40
10:03
+1:11
21M
21.00 mi14:01:463:04:388:489:57
9:57
-0:06
35K
21.75 mi14:09:243:12:168:507:38
10:12
+0:15
23M
23.00 mi14:21:023:23:548:5211:38
9:17
-0:55
24M
24.00 mi14:30:043:32:568:529:02
9:02
-0:15
40K
24.85 mi14:38:063:40:588:538:02
9:24
+0:22
25.2M
25.20 mi14:41:323:44:248:543:26
9:57
+0:33
Finish
26.22 mi14:50:313:53:238:548:59
8:49
-1:08

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

8:27 /mi

Average Pace

8:54 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

32:08

14% of race

Time at Steady Pace

2:26:54

63% of race

Time at Slower Pace

54:21

23% of race

Average Pace: 8:54 /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 mi11:23:3026:228:2926:22
8:29
#17485
10K
6.21 mi11:50:0752:598:3226:37
8:34
#18073
15K
9.32 mi12:16:461:19:388:3326:39
8:35
#18134
20K
12.43 mi12:43:581:46:508:3627:12
8:45
#18186
Half
13.11 mi12:49:441:52:368:355:46
8:27
#18142
25K
15.53 mi13:10:362:13:288:3620:52
8:36
#17902
30K
18.64 mi13:38:092:41:018:3827:33
8:52
#17591
20M
20.00 mi13:51:492:54:418:4413:40
10:03
#17930
21M
21.00 mi14:01:463:04:388:489:57
9:57
#17933
35K
21.75 mi14:09:243:12:168:507:38
10:12
#18175
23M
23.00 mi14:21:023:23:548:5211:38
9:17
#18132
24M
24.00 mi14:30:043:32:568:529:02
9:02
#18110
40K
24.85 mi14:38:063:40:588:538:02
9:24
#18104
25.2M
25.20 mi14:41:323:44:248:543:26
9:57
#18095
Finish
26.22 mi14:50:313:53:238:548:59
8:49
#18062
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi174856245624518310(Top 69%)6681(Top 58%)6681(Top 820%)
10K6.21 mi3.10 mi18073-5886579-3346579-33418664(Top 70%)6874(Top 60%)6874(Top 843%)
15K9.32 mi3.11 mi18134-616603-246603-2418310(Top 69%)6681(Top 58%)6681(Top 820%)
20K12.43 mi3.11 mi18186-526620-176620-1718444(Top 69%)6761(Top 59%)6761(Top 830%)
Half13.11 mi0.68 mi18142+446595+256595+2517518(Top 66%)6201(Top 54%)6201(Top 761%)
25K15.53 mi2.42 mi17902+2406483+1126483+11216861(Top 63%)5934(Top 52%)5934(Top 728%)
30K18.64 mi3.11 mi17591+3116315+1686315+16816484(Top 62%)5782(Top 51%)5782(Top 709%)
20M20.00 mi1.36 mi17930-3396546-2316546-23120644(Top 78%)8209(Top 72%)8209(Top 1007%)
21M21.00 mi1.00 mi17933-36554-86554-817876(Top 67%)6684(Top 59%)6684(Top 820%)
35K21.75 mi0.75 mi18175-2426708-1546708-15421789(Top 82%)8923(Top 78%)8923(Top 1095%)
23M23.00 mi1.25 mi18132+436691+176691+1717500(Top 66%)6572(Top 58%)6572(Top 806%)
24M24.00 mi1.00 mi18110+226694-36694-317398(Top 65%)6577(Top 58%)6577(Top 807%)
40K24.85 mi0.85 mi18104+66699-56699-517949(Top 67%)6921(Top 61%)6921(Top 849%)
25.2M25.20 mi0.35 mi18095+96699669917245(Top 65%)6571(Top 58%)6571(Top 806%)
Finish26.22 mi1.02 mi18062+336689+106689+1017143(Top 64%)6458(Top 57%)6458(Top 792%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18310

Females

6681

F55-59

6681

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18664

Females

6874

F55-59

6874

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18310

Females

6681

F55-59

6681

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

18444

Females

6761

F55-59

6761

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17518

Females

6201

F55-59

6201

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16861

Females

5934

F55-59

5934

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16484

Females

5782

F55-59

5782

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20644

Females

8209

F55-59

8209

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17876

Females

6684

F55-59

6684

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21789

Females

8923

F55-59

8923

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

17500

Females

6572

F55-59

6572

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17398

Females

6577

F55-59

6577

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17949

Females

6921

F55-59

6921

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17245

Females

6571

F55-59

6571

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

17143

Females

6458

F55-59

6458

Passing Analysis

Category:
Athletes Passed
1540
Passed By
2117
Net Change
-577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17485
5K → 10K110698-588#17485#18073
10K → 15K164225-61#18073#18134
15K → 20K149201-52#18134#18186
20K → Half5713+44#18186#18142
Half → 25K27232+240#18142#17902
25K → 30K35443+311#17902#17591
30K → 20M21360-339#17591#17930
20M → 21M8588-3#17930#17933
21M → 35K10252-242#17933#18175
35K → 23M9552+43#18175#18132
23M → 24M6947+22#18132#18110
24M → 40K4842+6#18110#18104
40K → 25.2M2718+9#18104#18095
25.2M → Finish7946+33#18095#18062
TOTALS15402117-577
📊

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