Boston Marathon logo
BOSTON MARATHON 2023

Jessica Osinski

Bib: 20464•F

WI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 36%
Division (F45-49)
#0 / 1817
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:39
Rank: #15868
Start → 5K
25:39 | 8:15/mi
10K· 6.21 mi
51:17
Rank: #16198 (-330)
5K → 10K
25:38 | 8:15/mi
15K· 9.32 mi
1:17:33
Rank: #16665 (-467)
10K → 15K
26:16 | 8:27/mi
20K· 12.43 mi
1:44:02
Rank: #16754 (-89)
15K → 20K
26:29 | 8:31/mi
Half· 13.11 mi
1:49:41
Rank: #16745 (+9)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:10:17
Rank: #16650 (+95)
Half → 25K
20:36 | 8:30/mi
30K· 18.64 mi
2:37:31
Rank: #16460 (+190)
25K → 30K
27:14 | 8:46/mi
20M
2:49:35
Rank: #16402 (+58)
30K → 20M
12:04 | 8:53/mi
21M
2:58:49
Rank: #16284 (+118)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
3:05:03
Rank: #16200 (+84)
21M → 35K
6:14 | 8:20/mi
23M
3:15:55
Rank: #16073 (+127)
35K → 23M
10:52 | 8:41/mi
24M
3:24:22
Rank: #15976 (+97)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:31:36
Rank: #15854 (+122)
24M → 40K
7:14 | 8:28/mi
25.2M
3:34:43
Rank: #15800 (+54)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:43:16
Rank: #15746 (+54)
25.2M → Finish
8:33 | 8:23/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
Time1:49:41
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:53:35
Pace8:40 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3425:398:1525:39
8:15
-
10K
6.21 mi11:46:1251:178:1525:38
8:15
0:00
15K
9.32 mi12:12:281:17:338:1926:16
8:27
+0:12
20K
12.43 mi12:38:571:44:028:2226:29
8:31
+0:04
Half
13.11 mi12:44:361:49:418:225:39
8:17
-0:14
25K
15.53 mi13:05:122:10:178:2320:36
8:30
+0:13
30K
18.64 mi13:32:262:37:318:2727:14
8:46
+0:16
20M
20.00 mi13:44:302:49:358:2912:04
8:53
+0:07
21M
21.00 mi13:53:442:58:498:319:14
9:14
+0:21
35K
21.75 mi13:59:583:05:038:316:14
8:20
-0:54
23M
23.00 mi14:10:503:15:558:3110:52
8:41
+0:21
24M
24.00 mi14:19:173:24:228:318:27
8:27
-0:14
40K
24.85 mi14:26:313:31:368:317:14
8:28
+0:01
25.2M
25.20 mi14:29:383:34:438:313:07
9:02
+0:34
Finish
26.22 mi14:38:113:43:168:318:33
8:23
-0:39

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

8:15 /mi

Average Pace

8:31 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:02

96% of race

Time at Steady Pace

9:14

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:31 /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 mi11:20:3425:398:1525:39
8:15
#15868
10K
6.21 mi11:46:1251:178:1525:38
8:15
#16198
15K
9.32 mi12:12:281:17:338:1926:16
8:27
#16665
20K
12.43 mi12:38:571:44:028:2226:29
8:31
#16754
Half
13.11 mi12:44:361:49:418:225:39
8:17
#16745
25K
15.53 mi13:05:122:10:178:2320:36
8:30
#16650
30K
18.64 mi13:32:262:37:318:2727:14
8:46
#16460
20M
20.00 mi13:44:302:49:358:2912:04
8:53
#16402
21M
21.00 mi13:53:442:58:498:319:14
9:14
#16284
35K
21.75 mi13:59:583:05:038:316:14
8:20
#16200
23M
23.00 mi14:10:503:15:558:3110:52
8:41
#16073
24M
24.00 mi14:19:173:24:228:318:27
8:27
#15976
40K
24.85 mi14:26:313:31:368:317:14
8:28
#15854
25.2M
25.20 mi14:29:383:34:438:313:07
9:02
#15800
Finish
26.22 mi14:38:113:43:168:318:33
8:23
#15746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi158685193519317499(Top 66%)6209(Top 54%)6209(Top 342%)
10K6.21 mi3.10 mi16198-3305395-2025395-20216598(Top 62%)5637(Top 49%)5637(Top 310%)
15K9.32 mi3.11 mi16665-4675708-3135708-31317499(Top 66%)6209(Top 54%)6209(Top 342%)
20K12.43 mi3.11 mi16754-895775-675775-6717014(Top 64%)5929(Top 52%)5929(Top 326%)
Half13.11 mi0.68 mi16745+95772+35772+316399(Top 62%)5531(Top 48%)5531(Top 304%)
25K15.53 mi2.42 mi16650+955728+445728+4416177(Top 61%)5543(Top 49%)5543(Top 305%)
30K18.64 mi3.11 mi16460+1905665+635665+6315865(Top 60%)5426(Top 48%)5426(Top 299%)
20M20.00 mi1.36 mi16402+585648+175648+1715906(Top 60%)5513(Top 48%)5513(Top 303%)
21M21.00 mi1.00 mi16284+1185589+595589+5914665(Top 55%)4858(Top 43%)4858(Top 267%)
35K21.75 mi0.75 mi16200+845553+365553+3614342(Top 54%)4759(Top 42%)4759(Top 262%)
23M23.00 mi1.25 mi16073+1275494+595494+5914283(Top 54%)4783(Top 42%)4783(Top 263%)
24M24.00 mi1.00 mi15976+975460+345460+3414215(Top 53%)4801(Top 42%)4801(Top 264%)
40K24.85 mi0.85 mi15854+1225392+685392+6813125(Top 49%)4281(Top 37%)4281(Top 236%)
25.2M25.20 mi0.35 mi15800+545368+245368+2412837(Top 48%)4170(Top 37%)4170(Top 229%)
Finish26.22 mi1.02 mi15746+545342+265342+2614705(Top 55%)5102(Top 45%)5102(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17499

Females

6209

F45-49

6209

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16598

Females

5637

F45-49

5637

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17499

Females

6209

F45-49

6209

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17014

Females

5929

F45-49

5929

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16399

Females

5531

F45-49

5531

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16177

Females

5543

F45-49

5543

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15865

Females

5426

F45-49

5426

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15906

Females

5513

F45-49

5513

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14665

Females

4858

F45-49

4858

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14342

Females

4759

F45-49

4759

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

14283

Females

4783

F45-49

4783

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14215

Females

4801

F45-49

4801

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13125

Females

4281

F45-49

4281

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12837

Females

4170

F45-49

4170

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

14705

Females

5102

F45-49

5102

Passing Analysis

Category:
Athletes Passed
1750
Passed By
1628
Net Change
+122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15868
5K → 10K164494-330#15868#16198
10K → 15K73540-467#16198#16665
15K → 20K138227-89#16665#16754
20K → Half2920+9#16754#16745
Half → 25K17984+95#16745#16650
25K → 30K27383+190#16650#16460
30K → 20M10547+58#16460#16402
20M → 21M14123+118#16402#16284
21M → 35K9612+84#16284#16200
35K → 23M15730+127#16200#16073
23M → 24M12023+97#16073#15976
24M → 40K13614+122#15976#15854
40K → 25.2M573+54#15854#15800
25.2M → Finish8228+54#15800#15746
TOTALS17501628+122
📊

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