Boston Marathon logo
BOSTON MARATHON 2024

Samira Regina Behrendt

Bib: 16829•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 41%
Masters (Masters Women)
#0 / 6263
Top 29%
Division (F45-49)
#0 / 1753
Top 37%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:11/mi
25:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
51:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:17:41
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:44:35
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:50:08
↑ 19↓ 370.5%
25K· 15.53 mi
8:41/mi
2:11:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:59/mi
2:39:07
↑ 181↓ 1480.2%
20M
8:59/mi
2:51:19
↑ 64↓ 500.2%
21M
9:12/mi
3:00:31
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:07:05
↑ 17↓ 861.7%
23M
8:49/mi
3:18:07
↑ 23↓ 630.6%
24M
8:41/mi
3:26:48
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:34:19
↓ 200.3%
25.2M
9:20/mi
3:37:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:45:54
↑ 22↓ 21

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
Time1:50:08
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time1:55:46
Pace8:50 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4125:248:1125:24
8:11
-
10K
6.21 mi11:41:3251:158:1525:51
8:19
+0:08
15K
9.32 mi12:07:581:17:418:2026:26
8:30
+0:11
20K
12.43 mi12:34:521:44:358:2526:54
8:39
+0:09
Half
13.11 mi12:40:251:50:088:245:33
8:08
-0:31
25K
15.53 mi13:01:282:11:118:2721:03
8:41
+0:33
30K
18.64 mi13:29:242:39:078:3227:56
8:59
+0:18
20M
20.00 mi13:41:362:51:198:3412:12
8:59
0:00
21M
21.00 mi13:50:483:00:318:369:12
9:12
+0:13
35K
21.75 mi13:57:223:07:058:366:34
8:47
-0:25
23M
23.00 mi14:08:243:18:078:3711:02
8:49
+0:02
24M
24.00 mi14:17:053:26:488:378:41
8:41
-0:08
40K
24.85 mi14:24:363:34:198:377:31
8:47
+0:06
25.2M
25.20 mi14:27:493:37:328:383:13
9:20
+0:33
Finish
26.22 mi14:36:113:45:548:378:22
8:13
-1:07

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

8:08 /mi

Average Pace

8:37 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:21

77% of race

Time at Steady Pace

52:33

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:15:4125:248:1125:24
8:11
#15876
10K
6.21 mi11:41:3251:158:1525:51
8:19
#16041
15K
9.32 mi12:07:581:17:418:2026:26
8:30
#16131
20K
12.43 mi12:34:521:44:358:2526:54
8:39
#15920
Half
13.11 mi12:40:251:50:088:245:33
8:08
#15803
25K
15.53 mi13:01:282:11:118:2721:03
8:41
#15466
30K
18.64 mi13:29:242:39:078:3227:56
8:59
#15013
20M
20.00 mi13:41:362:51:198:3412:12
8:59
#14762
21M
21.00 mi13:50:483:00:318:369:12
9:12
#14422
35K
21.75 mi13:57:223:07:058:366:34
8:47
#14302
23M
23.00 mi14:08:243:18:078:3711:02
8:49
#14034
24M
24.00 mi14:17:053:26:488:378:41
8:41
#13838
40K
24.85 mi14:24:363:34:198:377:31
8:47
#13647
25.2M
25.20 mi14:27:493:37:328:383:13
9:20
#13511
Finish
26.22 mi14:36:113:45:548:378:22
8:13
#13345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi158765488548816442(Top 64%)5825(Top 53%)5825(Top 332%)
10K6.21 mi3.10 mi16041-1655567-795567-7916249(Top 64%)5676(Top 52%)5676(Top 324%)
15K9.32 mi3.11 mi16131-905630-635630-6316442(Top 64%)5825(Top 53%)5825(Top 332%)
20K12.43 mi3.11 mi15920+2115531+995531+9915623(Top 61%)5357(Top 49%)5357(Top 306%)
Half13.11 mi0.68 mi15803+1175462+695462+6913659(Top 53%)4288(Top 39%)4288(Top 245%)
25K15.53 mi2.42 mi15466+3375282+1805282+18014005(Top 55%)4618(Top 42%)4618(Top 263%)
30K18.64 mi3.11 mi15013+4535093+1895093+18913193(Top 52%)4388(Top 40%)4388(Top 250%)
20M20.00 mi1.36 mi14762+2514981+1124981+11212033(Top 47%)4045(Top 37%)4045(Top 231%)
21M21.00 mi1.00 mi14422+3404832+1494832+1499531(Top 37%)2978(Top 27%)2978(Top 170%)
35K21.75 mi0.75 mi14302+1204792+404792+4012243(Top 48%)4407(Top 40%)4407(Top 251%)
23M23.00 mi1.25 mi14034+2684704+884704+8810194(Top 40%)3502(Top 32%)3502(Top 200%)
24M24.00 mi1.00 mi13838+1964639+654639+6510527(Top 41%)3703(Top 34%)3703(Top 211%)
40K24.85 mi0.85 mi13647+1914578+614578+619888(Top 39%)3524(Top 32%)3524(Top 201%)
25.2M25.20 mi0.35 mi13511+1364515+634515+638114(Top 32%)2737(Top 25%)2737(Top 156%)
Finish26.22 mi1.02 mi13345+1664458+574458+579865(Top 39%)3464(Top 32%)3464(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

16442

Females

5825

F45-49

5825

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16249

Females

5676

F45-49

5676

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

16442

Females

5825

F45-49

5825

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

15623

Females

5357

F45-49

5357

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

13659

Females

4288

F45-49

4288

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14005

Females

4618

F45-49

4618

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13193

Females

4388

F45-49

4388

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12033

Females

4045

F45-49

4045

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9531

Females

2978

F45-49

2978

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12243

Females

4407

F45-49

4407

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

10194

Females

3502

F45-49

3502

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10527

Females

3703

F45-49

3703

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

9888

Females

3524

F45-49

3524

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8114

Females

2737

F45-49

2737

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

9865

Females

3464

F45-49

3464

Passing Analysis

Category:
Athletes Passed
3572
Passed By
1041
Net Change
+2531
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15876
5K → 10K212377-165#15876#16041
10K → 15K208298-90#16041#16131
15K → 20K343132+211#16131#15920
20K → Half1203+117#15920#15803
Half → 25K39356+337#15803#15466
25K → 30K51259+453#15466#15013
30K → 20M27524+251#15013#14762
20M → 21M35010+340#14762#14422
21M → 35K14828+120#14422#14302
35K → 23M27911+268#14302#14034
23M → 24M21014+196#14034#13838
24M → 40K20312+191#13838#13647
40K → 25.2M1382+136#13647#13511
25.2M → Finish18115+166#13511#13345
TOTALS35721041+2531
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing