Boston Marathon logo
BOSTON MARATHON 2023

Josondra Notter

Bib: 9388•F

MI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:42
Rank: #10813
Start → 5K
23:42 | 7:38/mi
10K· 6.21 mi
47:20
Rank: #11083 (-270)
5K → 10K
23:38 | 7:36/mi
15K· 9.32 mi
1:11:00
Rank: #11087 (-4)
10K → 15K
23:40 | 7:37/mi
20K· 12.43 mi
1:34:43
Rank: #10891 (+196)
15K → 20K
23:43 | 7:38/mi
Half· 13.11 mi
1:39:46
Rank: #10816 (+75)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:58:14
Rank: #10578 (+238)
Half → 25K
18:28 | 7:37/mi
30K· 18.64 mi
2:22:27
Rank: #10305 (+273)
25K → 30K
24:13 | 7:48/mi
20M
2:33:03
Rank: #10181 (+124)
30K → 20M
10:36 | 7:48/mi
21M
2:41:07
Rank: #9996 (+185)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:46:47
Rank: #9938 (+58)
21M → 35K
5:40 | 7:34/mi
23M
2:56:32
Rank: #9806 (+132)
35K → 23M
9:45 | 7:47/mi
24M
3:04:11
Rank: #9727 (+79)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
3:10:52
Rank: #9662 (+65)
24M → 40K
6:41 | 7:49/mi
25.2M
3:13:43
Rank: #9613 (+49)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:21:09
Rank: #9492 (+121)
25.2M → Finish
7:26 | 7:18/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
Time1:39:46
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:41:23
Pace7:44 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1823:427:3823:42
7:38
-
10K
6.21 mi11:12:5647:207:3723:38
7:36
-0:02
15K
9.32 mi11:36:361:11:007:3723:40
7:37
+0:01
20K
12.43 mi12:00:191:34:437:3723:43
7:38
+0:01
Half
13.11 mi12:05:221:39:467:375:03
7:24
-0:14
25K
15.53 mi12:23:501:58:147:3718:28
7:37
+0:13
30K
18.64 mi12:48:032:22:277:3924:13
7:48
+0:11
20M
20.00 mi12:58:392:33:037:3910:36
7:48
0:00
21M
21.00 mi13:06:432:41:077:408:04
8:04
+0:16
35K
21.75 mi13:12:232:46:477:405:40
7:34
-0:30
23M
23.00 mi13:22:082:56:327:419:45
7:47
+0:13
24M
24.00 mi13:29:473:04:117:407:39
7:39
-0:08
40K
24.85 mi13:36:283:10:527:416:41
7:49
+0:10
25.2M
25.20 mi13:39:193:13:437:412:51
8:16
+0:27
Finish
26.22 mi13:46:453:21:097:417:26
7:18
-0:58

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

7:18 /mi

Average Pace

7:41 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:14

95% of race

Time at Steady Pace

10:55

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:49:1823:427:3823:42
7:38
#10813
10K
6.21 mi11:12:5647:207:3723:38
7:36
#11083
15K
9.32 mi11:36:361:11:007:3723:40
7:37
#11087
20K
12.43 mi12:00:191:34:437:3723:43
7:38
#10891
Half
13.11 mi12:05:221:39:467:375:03
7:24
#10816
25K
15.53 mi12:23:501:58:147:3718:28
7:37
#10578
30K
18.64 mi12:48:032:22:277:3924:13
7:48
#10305
20M
20.00 mi12:58:392:33:037:3910:36
7:48
#10181
21M
21.00 mi13:06:432:41:077:408:04
8:04
#9996
35K
21.75 mi13:12:232:46:477:405:40
7:34
#9938
23M
23.00 mi13:22:082:56:327:419:45
7:47
#9806
24M
24.00 mi13:29:473:04:117:407:39
7:39
#9727
40K
24.85 mi13:36:283:10:527:416:41
7:49
#9662
25.2M
25.20 mi13:39:193:13:437:412:51
8:16
#9613
Finish
26.22 mi13:46:453:21:097:417:26
7:18
#9492
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi108132230223011170(Top 42%)2438(Top 21%)2438(Top 50%)
10K6.21 mi3.10 mi11083-2702368-1382368-13811399(Top 43%)2552(Top 22%)2552(Top 52%)
15K9.32 mi3.11 mi11087-42380-122380-1211170(Top 42%)2438(Top 21%)2438(Top 50%)
20K12.43 mi3.11 mi10891+1962285+952285+9510366(Top 39%)2075(Top 18%)2075(Top 42%)
Half13.11 mi0.68 mi10816+752252+332252+339499(Top 36%)1679(Top 15%)1679(Top 34%)
25K15.53 mi2.42 mi10578+2382135+1172135+1179682(Top 36%)1861(Top 16%)1861(Top 38%)
30K18.64 mi3.11 mi10305+2732058+772058+779331(Top 35%)1851(Top 16%)1851(Top 38%)
20M20.00 mi1.36 mi10181+1242017+412017+418887(Top 33%)1754(Top 15%)1754(Top 36%)
21M21.00 mi1.00 mi9996+1851949+681949+687831(Top 29%)1446(Top 13%)1446(Top 30%)
35K21.75 mi0.75 mi9938+581935+141935+149123(Top 34%)1973(Top 17%)1973(Top 40%)
23M23.00 mi1.25 mi9806+1321910+251910+258349(Top 31%)1732(Top 15%)1732(Top 35%)
24M24.00 mi1.00 mi9727+791899+111899+118778(Top 33%)1990(Top 17%)1990(Top 41%)
40K24.85 mi0.85 mi9662+651890+91890+98812(Top 33%)2089(Top 18%)2089(Top 43%)
25.2M25.20 mi0.35 mi9613+491894-41894-48159(Top 31%)1886(Top 17%)1886(Top 39%)
Finish26.22 mi1.02 mi9492+1211863+311863+317133(Top 27%)1480(Top 13%)1480(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11170

Females

2438

F18-39

2438

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11399

Females

2552

F18-39

2552

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11170

Females

2438

F18-39

2438

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10366

Females

2075

F18-39

2075

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9499

Females

1679

F18-39

1679

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9682

Females

1861

F18-39

1861

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9331

Females

1851

F18-39

1851

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8887

Females

1754

F18-39

1754

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7831

Females

1446

F18-39

1446

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9123

Females

1973

F18-39

1973

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8349

Females

1732

F18-39

1732

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8778

Females

1990

F18-39

1990

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8812

Females

2089

F18-39

2089

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8159

Females

1886

F18-39

1886

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7133

Females

1480

F18-39

1480

Passing Analysis

Category:
Athletes Passed
2264*
Passed By
943
Net Change
+1321
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10813
5K → 10K185455-270#10813#11083
10K → 15K187191-4#11083#11087
15K → 20K26468+196#11087#10891
20K → Half816+75#10891#10816
Half → 25K26729+238#10816#10578
25K → 30K31845+273#10578#10305
30K → 20M145*21+124#10305#10181
20M → 21M198*13+185#10181#9996
21M → 35K7113+58#9996#9938
35K → 23M15321+132#9938#9806
23M → 24M9920+79#9806#9727
24M → 40K95*30+65#9727#9662
40K → 25.2M6718+49#9662#9613
25.2M → Finish13413+121#9613#9492
TOTALS2264*943+1321

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

📊

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