Boston Marathon logo
BOSTON MARATHON 2023

Stephanie Michaelis

Bib: 16288•F

MO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F40-44)
#0 / 1878
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:07
Rank: #12029
Start → 5K
24:07 | 7:46/mi
10K· 6.21 mi
48:13
Rank: #12357 (-328)
5K → 10K
24:06 | 7:45/mi
15K· 9.32 mi
1:12:20
Rank: #12316 (+41)
10K → 15K
24:07 | 7:46/mi
20K· 12.43 mi
1:36:27
Rank: #12054 (+262)
15K → 20K
24:07 | 7:46/mi
Half· 13.11 mi
1:41:43
Rank: #12052 (+2)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:00:34
Rank: #11820 (+232)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:24:49
Rank: #11330 (+490)
25K → 30K
24:15 | 7:48/mi
20M
2:35:30
Rank: #11144 (+186)
30K → 20M
10:41 | 7:52/mi
21M
2:43:31
Rank: #10897 (+247)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:49:09
Rank: #10795 (+102)
21M → 35K
5:38 | 7:32/mi
23M
2:58:40
Rank: #10550 (+245)
35K → 23M
9:31 | 7:36/mi
24M
3:05:53
Rank: #10304 (+246)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
3:12:08
Rank: #10079 (+225)
24M → 40K
6:15 | 7:19/mi
25.2M
3:14:48
Rank: #9966 (+113)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:21:52
Rank: #9686 (+280)
25.2M → Finish
7:04 | 6:56/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 Half
Distance13.11 mi
Time1:41:43
Pace7:46 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:09
Pace7:38 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1324:077:4624:07
7:46
-
10K
6.21 mi11:38:1948:137:4624:06
7:45
-0:01
15K
9.32 mi12:02:261:12:207:4624:07
7:46
+0:01
20K
12.43 mi12:26:331:36:277:4624:07
7:46
0:00
Half
13.11 mi12:31:491:41:437:465:16
7:43
-0:03
25K
15.53 mi12:50:402:00:347:4618:51
7:46
+0:03
30K
18.64 mi13:14:552:24:497:4624:15
7:48
+0:02
20M
20.00 mi13:25:362:35:307:4610:41
7:52
+0:04
21M
21.00 mi13:33:372:43:317:478:01
8:01
+0:09
35K
21.75 mi13:39:152:49:097:475:38
7:32
-0:29
23M
23.00 mi13:48:462:58:407:469:31
7:36
+0:04
24M
24.00 mi13:55:593:05:537:457:13
7:13
-0:23
40K
24.85 mi14:02:143:12:087:446:15
7:19
+0:06
25.2M
25.20 mi14:04:543:14:487:442:40
7:44
+0:25
Finish
26.22 mi14:11:583:21:527:427:04
6:56
-0:48

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

6:56 /mi

Average Pace

7:42 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:41

18% of race

Time at Steady Pace

2:46:11

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi11:14:1324:077:4624:07
7:46
#12029
10K
6.21 mi11:38:1948:137:4624:06
7:45
#12357
15K
9.32 mi12:02:261:12:207:4624:07
7:46
#12316
20K
12.43 mi12:26:331:36:277:4624:07
7:46
#12054
Half
13.11 mi12:31:491:41:437:465:16
7:43
#12052
25K
15.53 mi12:50:402:00:347:4618:51
7:46
#11820
30K
18.64 mi13:14:552:24:497:4624:15
7:48
#11330
20M
20.00 mi13:25:362:35:307:4610:41
7:52
#11144
21M
21.00 mi13:33:372:43:317:478:01
8:01
#10897
35K
21.75 mi13:39:152:49:097:475:38
7:32
#10795
23M
23.00 mi13:48:462:58:407:469:31
7:36
#10550
24M
24.00 mi13:55:593:05:537:457:13
7:13
#10304
40K
24.85 mi14:02:143:12:087:446:15
7:19
#10079
25.2M
25.20 mi14:04:543:14:487:442:40
7:44
#9966
Finish
26.22 mi14:11:583:21:527:427:04
6:56
#9686
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi120292885288512400(Top 47%)3127(Top 27%)3127(Top 167%)
10K6.21 mi3.10 mi12357-3283074-1893074-18912741(Top 48%)3274(Top 29%)3274(Top 174%)
15K9.32 mi3.11 mi12316+413073+13073+112400(Top 47%)3127(Top 27%)3127(Top 167%)
20K12.43 mi3.11 mi12054+2622939+1342939+13411417(Top 43%)2638(Top 23%)2638(Top 140%)
Half13.11 mi0.68 mi12052+22946-72946-712032(Top 45%)2910(Top 25%)2910(Top 155%)
25K15.53 mi2.42 mi11820+2322823+1232823+12310901(Top 41%)2430(Top 21%)2430(Top 129%)
30K18.64 mi3.11 mi11330+4902601+2222601+2229412(Top 35%)1894(Top 17%)1894(Top 101%)
20M20.00 mi1.36 mi11144+1862512+892512+899329(Top 35%)1948(Top 17%)1948(Top 104%)
21M21.00 mi1.00 mi10897+2472409+1032409+1037487(Top 28%)1318(Top 12%)1318(Top 70%)
35K21.75 mi0.75 mi10795+1022369+402369+408789(Top 33%)1822(Top 16%)1822(Top 97%)
23M23.00 mi1.25 mi10550+2452277+922277+927133(Top 27%)1230(Top 11%)1230(Top 65%)
24M24.00 mi1.00 mi10304+2462175+1022175+1025881(Top 22%)861(Top 8%)861(Top 46%)
40K24.85 mi0.85 mi10079+2252096+792096+795567(Top 21%)843(Top 7%)843(Top 45%)
25.2M25.20 mi0.35 mi9966+1132063+332063+335160(Top 19%)805(Top 7%)805(Top 43%)
Finish26.22 mi1.02 mi9686+2801960+1031960+1034873(Top 18%)699(Top 6%)699(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12400

Females

3127

F40-44

3127

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12741

Females

3274

F40-44

3274

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12400

Females

3127

F40-44

3127

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11417

Females

2638

F40-44

2638

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12032

Females

2910

F40-44

2910

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10901

Females

2430

F40-44

2430

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9412

Females

1894

F40-44

1894

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9329

Females

1948

F40-44

1948

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7487

Females

1318

F40-44

1318

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8789

Females

1822

F40-44

1822

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7133

Females

1230

F40-44

1230

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5881

Females

861

F40-44

861

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5567

Females

843

F40-44

843

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5160

Females

805

F40-44

805

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4873

Females

699

F40-44

699

Passing Analysis

Category:
Athletes Passed
3199*
Passed By
856
Net Change
+2343
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12029
5K → 10K175503-328#12029#12357
10K → 15K207166+41#12357#12316
15K → 20K32361+262#12316#12054
20K → Half2927+2#12054#12052
Half → 25K26836+232#12052#11820
25K → 30K50515+490#11820#11330
30K → 20M20620+186#11330#11144
20M → 21M2525+247#11144#10897
21M → 35K1119+102#10897#10795
35K → 23M2494+245#10795#10550
23M → 24M2493+246#10550#10304
24M → 40K2272+225#10304#10079
40K → 25.2M116*3+113#10079#9966
25.2M → Finish282*2+280#9966#9686
TOTALS3199*856+2343

* 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