Boston Marathon logo
BOSTON MARATHON 2024

Natasha Nejdl

Bib: 8254•F

CT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 27%
Gender (Female)
#0 / 10924
Top 12%
Division (F18-39)
#0 / 4660
Top 22%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:45
Rank: #7067
Start → 5K
21:45 | 7:00/mi
10K· 6.21 mi
43:24
Rank: #6747 (+320)
5K → 10K
21:39 | 6:58/mi
15K· 9.32 mi
1:05:17
Rank: #6634 (+113)
10K → 15K
21:53 | 7:03/mi
20K· 12.43 mi
1:28:19
Rank: #6836 (-202)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:33:25
Rank: #6911 (-75)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:52:31
Rank: #7239 (-328)
Half → 25K
19:06 | 7:53/mi
30K· 18.64 mi
2:17:56
Rank: #7449 (-210)
25K → 30K
25:25 | 8:11/mi
20M
2:30:01
Rank: #7758 (-309)
30K → 20M
12:05 | 8:54/mi
21M
2:39:02
Rank: #7734 (+24)
20M → 21M
9:01 | 9:01/mi
35K· 21.75 mi
2:45:11
Rank: #7725 (+9)
21M → 35K
6:09 | 8:13/mi
23M
2:55:13
Rank: #7500 (+225)
35K → 23M
10:02 | 8:01/mi
24M
3:03:04
Rank: #7350 (+150)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:09:49
Rank: #7196 (+154)
24M → 40K
6:45 | 7:54/mi
25.2M
3:12:45
Rank: #7112 (+84)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:20:25
Rank: #6998 (+114)
25.2M → Finish
7:40 | 7:31/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
Time1:33:25
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:47:00
Pace8:10 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5221:457:0021:45
7:00
-
10K
6.21 mi11:08:3143:246:5921:39
6:58
-0:02
15K
9.32 mi11:30:241:05:177:0021:53
7:03
+0:05
20K
12.43 mi11:53:261:28:197:0623:02
7:25
+0:22
Half
13.11 mi11:58:321:33:257:085:06
7:29
+0:04
25K
15.53 mi12:17:381:52:317:1519:06
7:53
+0:24
30K
18.64 mi12:43:032:17:567:2425:25
8:11
+0:18
20M
20.00 mi12:55:082:30:017:3012:05
8:54
+0:43
21M
21.00 mi13:04:092:39:027:349:01
9:01
+0:07
35K
21.75 mi13:10:182:45:117:366:09
8:13
-0:48
23M
23.00 mi13:20:202:55:137:3710:02
8:01
-0:12
24M
24.00 mi13:28:113:03:047:387:51
7:51
-0:10
40K
24.85 mi13:34:563:09:497:386:45
7:54
+0:03
25.2M
25.20 mi13:37:523:12:457:392:56
8:30
+0:36
Finish
26.22 mi13:45:323:20:257:397:40
7:31
-0:59

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

6:58 /mi

Average Pace

7:39 /mi

Slowest Pace

9:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:05

50% of race

Time at Steady Pace

1:09:09

35% of race

Time at Slower Pace

30:11

15% of race

Average Pace: 7:39 /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 mi10:46:5221:457:0021:45
7:00
#7067
10K
6.21 mi11:08:3143:246:5921:39
6:58
#6747
15K
9.32 mi11:30:241:05:177:0021:53
7:03
#6634
20K
12.43 mi11:53:261:28:197:0623:02
7:25
#6836
Half
13.11 mi11:58:321:33:257:085:06
7:29
#6911
25K
15.53 mi12:17:381:52:317:1519:06
7:53
#7239
30K
18.64 mi12:43:032:17:567:2425:25
8:11
#7449
20M
20.00 mi12:55:082:30:017:3012:05
8:54
#7758
21M
21.00 mi13:04:092:39:027:349:01
9:01
#7734
35K
21.75 mi13:10:182:45:117:366:09
8:13
#7725
23M
23.00 mi13:20:202:55:137:3710:02
8:01
#7500
24M
24.00 mi13:28:113:03:047:387:51
7:51
#7350
40K
24.85 mi13:34:563:09:497:386:45
7:54
#7196
25.2M
25.20 mi13:37:523:12:457:392:56
8:30
#7112
Finish
26.22 mi13:45:323:20:257:397:40
7:31
#6998
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi70678338336486(Top 25%)751(Top 7%)751(Top 16%)
10K6.21 mi3.10 mi6747+320768+65768+656472(Top 25%)719(Top 7%)719(Top 15%)
15K9.32 mi3.11 mi6634+113759+9759+96486(Top 25%)751(Top 7%)751(Top 16%)
20K12.43 mi3.11 mi6836-202836-77836-777746(Top 30%)1284(Top 12%)1284(Top 28%)
Half13.11 mi0.68 mi6911-75869-33869-338952(Top 35%)1778(Top 16%)1778(Top 38%)
25K15.53 mi2.42 mi7239-3281011-1421011-1429413(Top 37%)2197(Top 20%)2197(Top 47%)
30K18.64 mi3.11 mi7449-2101152-1411152-1418905(Top 35%)2161(Top 20%)2161(Top 46%)
20M20.00 mi1.36 mi7758-3091335-1831335-18311567(Top 45%)3794(Top 35%)3794(Top 81%)
21M21.00 mi1.00 mi7734+241372-371372-378684(Top 34%)2522(Top 23%)2522(Top 54%)
35K21.75 mi0.75 mi7725+91401-291401-299099(Top 36%)2759(Top 25%)2759(Top 59%)
23M23.00 mi1.25 mi7500+2251358+431358+435825(Top 23%)1378(Top 13%)1378(Top 30%)
24M24.00 mi1.00 mi7350+1501344+141344+145849(Top 23%)1451(Top 13%)1451(Top 31%)
40K24.85 mi0.85 mi7196+1541328+161328+165280(Top 21%)1318(Top 12%)1318(Top 28%)
25.2M25.20 mi0.35 mi7112+841314+141314+144529(Top 18%)1041(Top 10%)1041(Top 22%)
Finish26.22 mi1.02 mi6998+1141300+141300+145778(Top 23%)1538(Top 14%)1538(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6486

Females

751

F18-39

751

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6472

Females

719

F18-39

719

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6486

Females

751

F18-39

751

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7746

Females

1284

F18-39

1284

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

8952

Females

1778

F18-39

1778

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

9413

Females

2197

F18-39

2197

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

8905

Females

2161

F18-39

2161

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11567

Females

3794

F18-39

3794

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

8684

Females

2522

F18-39

2522

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9099

Females

2759

F18-39

2759

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

5825

Females

1378

F18-39

1378

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

5849

Females

1451

F18-39

1451

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5280

Females

1318

F18-39

1318

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4529

Females

1041

F18-39

1041

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

5778

Females

1538

F18-39

1538

Passing Analysis

Category:
Athletes Passed
2058
Passed By
1989
Net Change
+69
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7067
5K → 10K38262+320#7067#6747
10K → 15K20390+113#6747#6634
15K → 20K108310-202#6634#6836
20K → Half1186-75#6836#6911
Half → 25K104432-328#6911#7239
25K → 30K150360-210#7239#7449
30K → 20M60369-309#7449#7758
20M → 21M138114+24#7758#7734
21M → 35K8071+9#7734#7725
35K → 23M25429+225#7725#7500
23M → 24M17525+150#7500#7350
24M → 40K16511+154#7350#7196
40K → 25.2M895+84#7196#7112
25.2M → Finish13925+114#7112#6998
TOTALS20581989+69
📊

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