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BOSTON MARATHON 2023

Laura Magdeburger

Bib: 15804•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:35/mi
26:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:34/mi
53:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:41/mi
1:20:14
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:47:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:42/mi
1:53:38
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:15:11
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:43:38
↑ 181↓ 1480.2%
20M
9:44/mi
2:56:52
↑ 64↓ 500.2%
21M
10:57/mi
3:07:49
↑ 106↓ 241.6%
35K· 21.75 mi
9:11/mi
3:14:41
↑ 17↓ 861.7%
23M
9:21/mi
3:26:24
↑ 23↓ 630.6%
24M
9:10/mi
3:35:34
↓ 821.3%
40K· 24.85 mi
9:24/mi
3:43:36
↓ 200.3%
25.2M
10:18/mi
3:47:09
↑ 13↓ 160.2%
Finish· 26.22 mi
9:02/mi
3:56:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:38
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:02:43
Pace9:22 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:2826:398:3526:39
8:35
-
10K
6.21 mi11:24:0453:158:3426:36
8:34
-0:01
15K
9.32 mi11:51:031:20:148:3626:59
8:41
+0:07
20K
12.43 mi12:18:311:47:428:4027:28
8:50
+0:09
Half
13.11 mi12:24:271:53:388:405:56
8:42
-0:08
25K
15.53 mi12:46:002:15:118:4221:33
8:53
+0:11
30K
18.64 mi13:14:272:43:388:4728:27
9:09
+0:16
20M
20.00 mi13:27:412:56:528:5113:14
9:44
+0:35
21M
21.00 mi13:38:383:07:498:5710:57
10:57
+1:13
35K
21.75 mi13:45:303:14:418:576:52
9:11
-1:46
23M
23.00 mi13:57:133:26:248:5811:43
9:21
+0:10
24M
24.00 mi14:06:233:35:348:599:10
9:10
-0:11
40K
24.85 mi14:14:253:43:369:008:02
9:24
+0:14
25.2M
25.20 mi14:17:583:47:099:013:33
10:18
+0:54
Finish
26.22 mi14:27:103:56:219:019:12
9:02
-1:16

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

8:34 /mi

Average Pace

9:01 /mi

Slowest Pace

10:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:10

36% of race

Time at Steady Pace

2:02:27

52% of race

Time at Slower Pace

27:44

12% of race

Average Pace: 9:01 /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 mi10:57:2826:398:3526:39
8:35
#18107
10K
6.21 mi11:24:0453:158:3426:36
8:34
#18332
15K
9.32 mi11:51:031:20:148:3626:59
8:41
#18526
20K
12.43 mi12:18:311:47:428:4027:28
8:50
#18619
Half
13.11 mi12:24:271:53:388:405:56
8:42
#18632
25K
15.53 mi12:46:002:15:118:4221:33
8:53
#18590
30K
18.64 mi13:14:272:43:388:4728:27
9:09
#18446
20M
20.00 mi13:27:412:56:528:5113:14
9:44
#18570
21M
21.00 mi13:38:383:07:498:5710:57
10:57
#18760
35K
21.75 mi13:45:303:14:418:576:52
9:11
#18767
23M
23.00 mi13:57:133:26:248:5811:43
9:21
#18697
24M
24.00 mi14:06:233:35:348:599:10
9:10
#18668
40K
24.85 mi14:14:253:43:369:008:02
9:24
#18638
25.2M
25.20 mi14:17:583:47:099:013:33
10:18
#18645
Finish
26.22 mi14:27:103:56:219:019:12
9:02
#18633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi181076627662718907(Top 71%)7047(Top 62%)7047(Top 865%)
10K6.21 mi3.10 mi18332-2256716-896716-8918649(Top 70%)6865(Top 60%)6865(Top 842%)
15K9.32 mi3.11 mi18526-1946832-1166832-11618907(Top 71%)7047(Top 62%)7047(Top 865%)
20K12.43 mi3.11 mi18619-936881-496881-4918898(Top 71%)7029(Top 62%)7029(Top 862%)
Half13.11 mi0.68 mi18632-136892-116892-1118970(Top 71%)7069(Top 62%)7069(Top 867%)
25K15.53 mi2.42 mi18590+426887+56887+518408(Top 69%)6794(Top 59%)6794(Top 834%)
30K18.64 mi3.11 mi18446+1446836+516836+5117977(Top 68%)6637(Top 58%)6637(Top 814%)
20M20.00 mi1.36 mi18570-1246911-756911-7519672(Top 74%)7678(Top 67%)7678(Top 942%)
21M21.00 mi1.00 mi18760-1907028-1177028-11720724(Top 78%)8306(Top 73%)8306(Top 1019%)
35K21.75 mi0.75 mi18767-77038-107038-1018672(Top 70%)7202(Top 63%)7202(Top 884%)
23M23.00 mi1.25 mi18697+707013+257013+2517774(Top 67%)6735(Top 59%)6735(Top 826%)
24M24.00 mi1.00 mi18668+297004+97004+917955(Top 67%)6879(Top 60%)6879(Top 844%)
40K24.85 mi0.85 mi18638+307001+37001+317957(Top 67%)6929(Top 61%)6929(Top 850%)
25.2M25.20 mi0.35 mi18645-77015-147015-1418486(Top 69%)7219(Top 63%)7219(Top 886%)
Finish26.22 mi1.02 mi18633+127011+47011+418134(Top 68%)6972(Top 61%)6972(Top 855%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18907

Females

7047

F55-59

7047

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18649

Females

6865

F55-59

6865

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18907

Females

7047

F55-59

7047

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18898

Females

7029

F55-59

7029

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18970

Females

7069

F55-59

7069

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18408

Females

6794

F55-59

6794

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

17977

Females

6637

F55-59

6637

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19672

Females

7678

F55-59

7678

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20724

Females

8306

F55-59

8306

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18672

Females

7202

F55-59

7202

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17774

Females

6735

F55-59

6735

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17955

Females

6879

F55-59

6879

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17957

Females

6929

F55-59

6929

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18486

Females

7219

F55-59

7219

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18134

Females

6972

F55-59

6972

Passing Analysis

Category:
Athletes Passed
1319
Passed By
1845
Net Change
-526
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18107
5K → 10K202427-225#18107#18332
10K → 15K115309-194#18332#18526
15K → 20K131224-93#18526#18619
20K → Half1932-13#18619#18632
Half → 25K147105+42#18632#18590
25K → 30K245101+144#18590#18446
30K → 20M49173-124#18446#18570
20M → 21M41231-190#18570#18760
21M → 35K4552-7#18760#18767
35K → 23M11040+70#18767#18697
23M → 24M6839+29#18697#18668
24M → 40K6636+30#18668#18638
40K → 25.2M2532-7#18638#18645
25.2M → Finish5644+12#18645#18633
TOTALS13191845-526
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing