Boston Marathon logo
BOSTON MARATHON 2023

Lauren Bondly

Bib: 9673•F

AZ

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 27%
Division (F18-39)
#0 / 4884
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:20
Rank: #7439
Start → 5K
22:20 | 7:11/mi
10K· 6.21 mi
44:14
Rank: #7241 (+198)
5K → 10K
21:54 | 7:03/mi
15K· 9.32 mi
1:08:12
Rank: #8592 (-1351)
10K → 15K
23:58 | 7:43/mi
20K· 12.43 mi
1:31:38
Rank: #8800 (-208)
15K → 20K
23:26 | 7:33/mi
Half· 13.11 mi
1:36:40
Rank: #8812 (-12)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:55:47
Rank: #9265 (-453)
Half → 25K
19:07 | 7:53/mi
30K· 18.64 mi
2:22:18
Rank: #10241 (-976)
25K → 30K
26:31 | 8:32/mi
20M
2:33:39
Rank: #10421 (-180)
30K → 20M
11:21 | 8:21/mi
21M
2:43:25
Rank: #10865 (-444)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
2:49:25
Rank: #10897 (-32)
21M → 35K
6:00 | 8:01/mi
23M
3:00:13
Rank: #11093 (-196)
35K → 23M
10:48 | 8:38/mi
24M
3:09:03
Rank: #11385 (-292)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:16:46
Rank: #11620 (-235)
24M → 40K
7:43 | 9:02/mi
25.2M
3:20:09
Rank: #11725 (-105)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:28:39
Rank: #11838 (-113)
25.2M → Finish
8:30 | 8:20/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
Time1:36:40
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:51:59
Pace8:33 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0922:207:1122:20
7:11
-
10K
6.21 mi11:10:0344:147:0721:54
7:03
-0:08
15K
9.32 mi11:34:011:08:127:1923:58
7:43
+0:40
20K
12.43 mi11:57:271:31:387:2223:26
7:33
-0:10
Half
13.11 mi12:02:291:36:407:225:02
7:23
-0:10
25K
15.53 mi12:21:361:55:477:2719:07
7:53
+0:30
30K
18.64 mi12:48:072:22:187:3826:31
8:32
+0:39
20M
20.00 mi12:59:282:33:397:4111:21
8:21
-0:11
21M
21.00 mi13:09:142:43:257:479:46
9:46
+1:25
35K
21.75 mi13:15:142:49:257:476:00
8:01
-1:45
23M
23.00 mi13:26:023:00:137:5010:48
8:38
+0:37
24M
24.00 mi13:34:523:09:037:538:50
8:50
+0:12
40K
24.85 mi13:42:353:16:467:557:43
9:02
+0:12
25.2M
25.20 mi13:45:583:20:097:573:23
9:49
+0:47
Finish
26.22 mi13:54:283:28:397:588:30
8:20
-1:29

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

7:03 /mi

Average Pace

7:58 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:47

55% of race

Time at Steady Pace

1:03:10

30% of race

Time at Slower Pace

29:42

14% of race

Average Pace: 7:57 /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 mi10:48:0922:207:1122:20
7:11
#7439
10K
6.21 mi11:10:0344:147:0721:54
7:03
#7241
15K
9.32 mi11:34:011:08:127:1923:58
7:43
#8592
20K
12.43 mi11:57:271:31:387:2223:26
7:33
#8800
Half
13.11 mi12:02:291:36:407:225:02
7:23
#8812
25K
15.53 mi12:21:361:55:477:2719:07
7:53
#9265
30K
18.64 mi12:48:072:22:187:3826:31
8:32
#10241
20M
20.00 mi12:59:282:33:397:4111:21
8:21
#10421
21M
21.00 mi13:09:142:43:257:479:46
9:46
#10865
35K
21.75 mi13:15:142:49:257:476:00
8:01
#10897
23M
23.00 mi13:26:023:00:137:5010:48
8:38
#11093
24M
24.00 mi13:34:523:09:037:538:50
8:50
#11385
40K
24.85 mi13:42:353:16:467:557:43
9:02
#11620
25.2M
25.20 mi13:45:583:20:097:573:23
9:49
#11725
Finish
26.22 mi13:54:283:28:397:588:30
8:20
#11838
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi743982982911982(Top 45%)2893(Top 25%)2893(Top 59%)
10K6.21 mi3.10 mi7241+198798+31798+317134(Top 27%)790(Top 7%)790(Top 16%)
15K9.32 mi3.11 mi8592-13511263-4651263-46511982(Top 45%)2893(Top 25%)2893(Top 59%)
20K12.43 mi3.11 mi8800-2081355-921355-929674(Top 36%)1771(Top 16%)1771(Top 36%)
Half13.11 mi0.68 mi8812-121365-101365-109339(Top 35%)1631(Top 14%)1631(Top 33%)
25K15.53 mi2.42 mi9265-4531552-1871552-18711807(Top 44%)2960(Top 26%)2960(Top 61%)
30K18.64 mi3.11 mi10241-9762018-4662018-46614523(Top 55%)4635(Top 41%)4635(Top 95%)
20M20.00 mi1.36 mi10421-1802132-1142132-11412709(Top 48%)3680(Top 32%)3680(Top 75%)
21M21.00 mi1.00 mi10865-4442393-2612393-26117116(Top 64%)6251(Top 55%)6251(Top 128%)
35K21.75 mi0.75 mi10897-322425-322425-3212299(Top 46%)3590(Top 31%)3590(Top 74%)
23M23.00 mi1.25 mi11093-1962541-1162541-11613939(Top 52%)4572(Top 40%)4572(Top 94%)
24M24.00 mi1.00 mi11385-2922728-1872728-18716392(Top 62%)6012(Top 53%)6012(Top 123%)
40K24.85 mi0.85 mi11620-2352874-1462874-14616277(Top 61%)6002(Top 53%)6002(Top 123%)
25.2M25.20 mi0.35 mi11725-1052946-722946-7216584(Top 62%)6173(Top 54%)6173(Top 126%)
Finish26.22 mi1.02 mi11838-1133034-883034-8814357(Top 54%)4919(Top 43%)4919(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

11982

Females

2893

F18-39

2893

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7134

Females

790

F18-39

790

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

11982

Females

2893

F18-39

2893

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9674

Females

1771

F18-39

1771

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9339

Females

1631

F18-39

1631

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11807

Females

2960

F18-39

2960

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14523

Females

4635

F18-39

4635

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

12709

Females

3680

F18-39

3680

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17116

Females

6251

F18-39

6251

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12299

Females

3590

F18-39

3590

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13939

Females

4572

F18-39

4572

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16392

Females

6012

F18-39

6012

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16277

Females

6002

F18-39

6002

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16584

Females

6173

F18-39

6173

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14357

Females

4919

F18-39

4919

Passing Analysis

Category:
Athletes Passed
686*
Passed By
5084
Net Change
-4399
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7439
5K → 10K333135+198#7439#7241
10K → 15K51356-1351#7241#8592
15K → 20K69277-208#8592#8800
20K → Half1729-12#8800#8812
Half → 25K23476-453#8812#9265
25K → 30K21996-976#9265#10241
30K → 20M33*213-180#10241#10421
20M → 21M13457-444#10421#10865
21M → 35K3769-32#10865#10897
35K → 23M46242-196#10897#11093
23M → 24M16308-292#11093#11385
24M → 40K20255-235#11385#11620
40K → 25.2M10115-105#11620#11725
25.2M → Finish43156-113#11725#11838
TOTALS686*5084-4399

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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