Boston Marathon logo
BOSTON MARATHON 2023

Nadja Leimer

Bib: 27460•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:26
Rank: #22016
Start → 5K
29:26 | 9:28/mi
10K· 6.21 mi
58:23
Rank: #22038 (-22)
5K → 10K
28:57 | 9:19/mi
15K· 9.32 mi
1:26:55
Rank: #21754 (+284)
10K → 15K
28:32 | 9:11/mi
20K· 12.43 mi
1:55:19
Rank: #21440 (+314)
15K → 20K
28:24 | 9:08/mi
Half· 13.11 mi
2:01:21
Rank: #21368 (+72)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:23:10
Rank: #20991 (+377)
Half → 25K
21:49 | 9:00/mi
30K· 18.64 mi
2:51:31
Rank: #20459 (+532)
25K → 30K
28:21 | 9:07/mi
20M
3:05:56
Rank: #20605 (-146)
30K → 20M
14:25 | 10:37/mi
21M
3:15:27
Rank: #20354 (+251)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
3:22:00
Rank: #20253 (+101)
21M → 35K
6:33 | 8:45/mi
23M
3:35:59
Rank: #20434 (-181)
35K → 23M
13:59 | 11:10/mi
24M
3:44:40
Rank: #20272 (+162)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:52:14
Rank: #20133 (+139)
24M → 40K
7:34 | 8:51/mi
25.2M
3:55:30
Rank: #20066 (+67)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
4:04:13
Rank: #19935 (+131)
25.2M → Finish
8:43 | 8:33/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
Time2:01:21
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:02:52
Pace9:22 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4529:269:2829:26
9:28
-
10K
6.21 mi12:21:4258:239:2428:57
9:19
-0:09
15K
9.32 mi12:50:141:26:559:2028:32
9:11
-0:08
20K
12.43 mi13:18:381:55:199:1728:24
9:08
-0:03
Half
13.11 mi13:24:402:01:219:156:02
8:51
-0:17
25K
15.53 mi13:46:292:23:109:1321:49
9:00
+0:09
30K
18.64 mi14:14:502:51:319:1228:21
9:07
+0:07
20M
20.00 mi14:29:153:05:569:1814:25
10:37
+1:30
21M
21.00 mi14:38:463:15:279:189:31
9:31
-1:06
35K
21.75 mi14:45:193:22:009:176:33
8:45
-0:46
23M
23.00 mi14:59:183:35:599:2313:59
11:10
+2:25
24M
24.00 mi15:07:593:44:409:228:41
8:41
-2:29
40K
24.85 mi15:15:333:52:149:217:34
8:51
+0:10
25.2M
25.20 mi15:18:493:55:309:213:16
9:28
+0:37
Finish
26.22 mi15:27:324:04:139:198:43
8:33
-0:55

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

8:33 /mi

Average Pace

9:19 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:57

10% of race

Time at Steady Pace

3:02:21

75% of race

Time at Slower Pace

37:55

16% of race

Average Pace: 9:19 /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 mi11:52:4529:269:2829:26
9:28
#22016
10K
6.21 mi12:21:4258:239:2428:57
9:19
#22038
15K
9.32 mi12:50:141:26:559:2028:32
9:11
#21754
20K
12.43 mi13:18:381:55:199:1728:24
9:08
#21440
Half
13.11 mi13:24:402:01:219:156:02
8:51
#21368
25K
15.53 mi13:46:292:23:109:1321:49
9:00
#20991
30K
18.64 mi14:14:502:51:319:1228:21
9:07
#20459
20M
20.00 mi14:29:153:05:569:1814:25
10:37
#20605
21M
21.00 mi14:38:463:15:279:189:31
9:31
#20354
35K
21.75 mi14:45:193:22:009:176:33
8:45
#20253
23M
23.00 mi14:59:183:35:599:2313:59
11:10
#20434
24M
24.00 mi15:07:593:44:409:228:41
8:41
#20272
40K
24.85 mi15:15:333:52:149:217:34
8:51
#20133
25.2M
25.20 mi15:18:493:55:309:213:16
9:28
#20066
Finish
26.22 mi15:27:324:04:139:198:43
8:33
#19935
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi220168887888721248(Top 80%)8369(Top 73%)8369(Top 171%)
10K6.21 mi3.10 mi22038-228874+138874+1321985(Top 83%)8814(Top 77%)8814(Top 180%)
15K9.32 mi3.11 mi21754+2848700+1748700+17421248(Top 80%)8369(Top 73%)8369(Top 171%)
20K12.43 mi3.11 mi21440+3148518+1828518+18220331(Top 76%)7859(Top 69%)7859(Top 161%)
Half13.11 mi0.68 mi21368+728470+488470+4819771(Top 74%)7542(Top 66%)7542(Top 154%)
25K15.53 mi2.42 mi20991+3778259+2118259+21118958(Top 71%)7110(Top 62%)7110(Top 146%)
30K18.64 mi3.11 mi20459+5327987+2727987+27217823(Top 67%)6542(Top 57%)6542(Top 134%)
20M20.00 mi1.36 mi20605-1468078-918078-9121965(Top 83%)8956(Top 78%)8956(Top 183%)
21M21.00 mi1.00 mi20354+2517952+1267952+12616075(Top 60%)5682(Top 50%)5682(Top 116%)
35K21.75 mi0.75 mi20253+1017908+447908+4416780(Top 63%)6168(Top 54%)6168(Top 126%)
23M23.00 mi1.25 mi20434-1818016-1088016-10822676(Top 85%)9416(Top 82%)9416(Top 193%)
24M24.00 mi1.00 mi20272+1627932+847932+8415618(Top 59%)5608(Top 49%)5608(Top 115%)
40K24.85 mi0.85 mi20133+1397861+717861+7115414(Top 58%)5546(Top 49%)5546(Top 114%)
25.2M25.20 mi0.35 mi20066+677830+317830+3115181(Top 57%)5435(Top 48%)5435(Top 111%)
Finish26.22 mi1.02 mi19935+1317753+777753+7715775(Top 59%)5695(Top 50%)5695(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21248

Females

8369

F18-39

8369

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

21985

Females

8814

F18-39

8814

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21248

Females

8369

F18-39

8369

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20331

Females

7859

F18-39

7859

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

19771

Females

7542

F18-39

7542

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18958

Females

7110

F18-39

7110

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17823

Females

6542

F18-39

6542

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

21965

Females

8956

F18-39

8956

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16075

Females

5682

F18-39

5682

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16780

Females

6168

F18-39

6168

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

22676

Females

9416

F18-39

9416

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15618

Females

5608

F18-39

5608

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15414

Females

5546

F18-39

5546

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15181

Females

5435

F18-39

5435

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15775

Females

5695

F18-39

5695

Passing Analysis

Category:
Athletes Passed
2825
Passed By
744
Net Change
+2081
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22016
5K → 10K236258-22#22016#22038
10K → 15K34460+284#22038#21754
15K → 20K33622+314#21754#21440
20K → Half753+72#21440#21368
Half → 25K3792+377#21368#20991
25K → 30K5353+532#20991#20459
30K → 20M36182-146#20459#20605
20M → 21M2510+251#20605#20354
21M → 35K1010+101#20354#20253
35K → 23M23204-181#20253#20434
23M → 24M1653+162#20434#20272
24M → 40K1390+139#20272#20133
40K → 25.2M681+67#20133#20066
25.2M → Finish1376+131#20066#19935
TOTALS2825744+2081
📊

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