Boston Marathon logo
BOSTON MARATHON 2023

Miriam Buscher

Bib: 10952•F

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 24%
Division (F18-39)
#0 / 4884
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:34
Rank: #7909
Start → 5K
22:34 | 7:16/mi
10K· 6.21 mi
44:40
Rank: #7689 (+220)
5K → 10K
22:06 | 7:07/mi
15K· 9.32 mi
1:07:19
Rank: #7920 (-231)
10K → 15K
22:39 | 7:17/mi
20K· 12.43 mi
1:31:34
Rank: #8756 (-836)
15K → 20K
24:15 | 7:48/mi
Half· 13.11 mi
1:36:46
Rank: #8874 (-118)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:55:45
Rank: #9241 (-367)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:21:20
Rank: #9838 (-597)
25K → 30K
25:35 | 8:14/mi
20M
2:32:39
Rank: #10005 (-167)
30K → 20M
11:19 | 8:20/mi
21M
2:41:39
Rank: #10201 (-196)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:47:59
Rank: #10384 (-183)
21M → 35K
6:20 | 8:28/mi
23M
2:59:01
Rank: #10657 (-273)
35K → 23M
11:02 | 8:49/mi
24M
3:07:48
Rank: #10932 (-275)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:15:23
Rank: #11130 (-198)
24M → 40K
7:35 | 8:52/mi
25.2M
3:18:32
Rank: #11160 (-30)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:26:52
Rank: #11248 (-88)
25.2M → Finish
8:20 | 8:11/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
Time1:36:46
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:50:06
Pace8:24 /mi
📊Positive Split: 13.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0122:347:1622:34
7:16
-
10K
6.21 mi11:11:0744:407:1122:06
7:07
-0:09
15K
9.32 mi11:33:461:07:197:1322:39
7:17
+0:10
20K
12.43 mi11:58:011:31:347:2224:15
7:48
+0:31
Half
13.11 mi12:03:131:36:467:235:12
7:37
-0:11
25K
15.53 mi12:22:121:55:457:2718:59
7:50
+0:13
30K
18.64 mi12:47:472:21:207:3525:35
8:14
+0:24
20M
20.00 mi12:59:062:32:397:3811:19
8:20
+0:06
21M
21.00 mi13:08:062:41:397:429:00
9:00
+0:40
35K
21.75 mi13:14:262:47:597:436:20
8:28
-0:32
23M
23.00 mi13:25:282:59:017:4711:02
8:49
+0:21
24M
24.00 mi13:34:153:07:487:508:47
8:47
-0:02
40K
24.85 mi13:41:503:15:237:527:35
8:52
+0:05
25.2M
25.20 mi13:44:593:18:327:533:09
9:08
+0:16
Finish
26.22 mi13:53:193:26:527:548:20
8:11
-0:57

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

7:07 /mi

Average Pace

7:54 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:45

56% of race

Time at Steady Pace

51:34

25% of race

Time at Slower Pace

39:33

19% of race

Average Pace: 7:53 /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 mi10:49:0122:347:1622:34
7:16
#7909
10K
6.21 mi11:11:0744:407:1122:06
7:07
#7689
15K
9.32 mi11:33:461:07:197:1322:39
7:17
#7920
20K
12.43 mi11:58:011:31:347:2224:15
7:48
#8756
Half
13.11 mi12:03:131:36:467:235:12
7:37
#8874
25K
15.53 mi12:22:121:55:457:2718:59
7:50
#9241
30K
18.64 mi12:47:472:21:207:3525:35
8:14
#9838
20M
20.00 mi12:59:062:32:397:3811:19
8:20
#10005
21M
21.00 mi13:08:062:41:397:429:00
9:00
#10201
35K
21.75 mi13:14:262:47:597:436:20
8:28
#10384
23M
23.00 mi13:25:282:59:017:4711:02
8:49
#10657
24M
24.00 mi13:34:153:07:487:508:47
8:47
#10932
40K
24.85 mi13:41:503:15:237:527:35
8:52
#11130
25.2M
25.20 mi13:44:593:18:327:533:09
9:08
#11160
Finish
26.22 mi13:53:193:26:527:548:20
8:11
#11248
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi79099909908494(Top 32%)1250(Top 11%)1250(Top 26%)
10K6.21 mi3.10 mi7689+220916+74916+747546(Top 28%)903(Top 8%)903(Top 18%)
15K9.32 mi3.11 mi7920-2311006-901006-908494(Top 32%)1250(Top 11%)1250(Top 26%)
20K12.43 mi3.11 mi8756-8361334-3281334-32811798(Top 44%)2847(Top 25%)2847(Top 58%)
Half13.11 mi0.68 mi8874-1181388-541388-5411279(Top 42%)2510(Top 22%)2510(Top 51%)
25K15.53 mi2.42 mi9241-3671544-1561544-15611360(Top 43%)2691(Top 24%)2691(Top 55%)
30K18.64 mi3.11 mi9838-5971816-2721816-27212570(Top 47%)3500(Top 31%)3500(Top 72%)
20M20.00 mi1.36 mi10005-1671923-1071923-10712537(Top 47%)3594(Top 31%)3594(Top 74%)
21M21.00 mi1.00 mi10201-1962045-1222045-12213409(Top 50%)4154(Top 36%)4154(Top 85%)
35K21.75 mi0.75 mi10384-1832159-1142159-11415107(Top 57%)5158(Top 45%)5158(Top 106%)
23M23.00 mi1.25 mi10657-2732334-1752334-17515054(Top 57%)5200(Top 46%)5200(Top 106%)
24M24.00 mi1.00 mi10932-2752490-1562490-15616104(Top 60%)5854(Top 51%)5854(Top 120%)
40K24.85 mi0.85 mi11130-1982615-1252615-12515459(Top 58%)5553(Top 49%)5553(Top 114%)
25.2M25.20 mi0.35 mi11160-302647-322647-3213283(Top 50%)4354(Top 38%)4354(Top 89%)
Finish26.22 mi1.02 mi11248-882717-702717-7013289(Top 50%)4348(Top 38%)4348(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8494

Females

1250

F18-39

1250

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7546

Females

903

F18-39

903

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8494

Females

1250

F18-39

1250

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11798

Females

2847

F18-39

2847

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11279

Females

2510

F18-39

2510

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11360

Females

2691

F18-39

2691

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12570

Females

3500

F18-39

3500

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

12537

Females

3594

F18-39

3594

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13409

Females

4154

F18-39

4154

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15107

Females

5158

F18-39

5158

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15054

Females

5200

F18-39

5200

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16104

Females

5854

F18-39

5854

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15459

Females

5553

F18-39

5553

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13283

Females

4354

F18-39

4354

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13289

Females

4348

F18-39

4348

Passing Analysis

Category:
Athletes Passed
772
Passed By
4109
Net Change
-3339
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7909
5K → 10K361141+220#7909#7689
10K → 15K61292-231#7689#7920
15K → 20K17853-836#7920#8756
20K → Half3121-118#8756#8874
Half → 25K36403-367#8874#9241
25K → 30K42639-597#9241#9838
30K → 20M48214-167#9838#10005
20M → 21M41236-196#10005#10201
21M → 35K18201-183#10201#10384
35K → 23M30303-273#10384#10657
23M → 24M20295-275#10657#10932
24M → 40K25223-198#10932#11130
40K → 25.2M2656-30#11130#11160
25.2M → Finish44132-88#11160#11248
TOTALS7724109-3339
📊

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