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BOSTON MARATHON 2025

Laura Magdeburger

Bib: 16912•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 46%
Race Day Weather
50°/40°F
broken 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
8:24/mi
26:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
52:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:18:40
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:44:57
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:50:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:11:38
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:40:51
↑ 181↓ 1480.2%
20M
10:08/mi
2:54:37
↑ 64↓ 500.2%
21M
12:22/mi
3:06:59
↑ 106↓ 241.6%
35K· 21.75 mi
9:35/mi
3:14:09
↑ 17↓ 861.7%
23M
10:10/mi
3:26:53
↑ 23↓ 630.6%
24M
10:28/mi
3:37:21
↓ 821.3%
40K· 24.85 mi
10:16/mi
3:46:08
↓ 200.3%
25.2M
11:21/mi
3:50:03
↑ 13↓ 160.2%
Finish· 26.22 mi
10:07/mi
4:00:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:41
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time2:09:41
Pace9:54 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:3626:078:2426:07
8:24
-
10K
6.21 mi11:25:5452:258:2626:18
8:28
+0:04
15K
9.32 mi11:52:091:18:408:2626:15
8:27
-0:01
20K
12.43 mi12:18:261:44:578:2726:17
8:28
+0:01
Half
13.11 mi12:24:101:50:418:275:44
8:24
-0:04
25K
15.53 mi12:45:072:11:388:2820:57
8:38
+0:14
30K
18.64 mi13:14:202:40:518:3829:13
9:24
+0:46
20M
20.00 mi13:28:062:54:378:4413:46
10:08
+0:44
21M
21.00 mi13:40:283:06:598:5412:22
12:22
+2:14
35K
21.75 mi13:47:383:14:098:567:10
9:35
-2:47
23M
23.00 mi14:00:223:26:539:0012:44
10:10
+0:35
24M
24.00 mi14:10:503:37:219:0310:28
10:28
+0:18
40K
24.85 mi14:19:373:46:089:068:47
10:16
-0:12
25.2M
25.20 mi14:23:323:50:039:083:55
11:21
+1:05
Finish
26.22 mi14:33:514:00:229:1010:19
10:07
-1:14

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

8:24 /mi

Average Pace

9:10 /mi

Slowest Pace

12:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:38

55% of race

Time at Steady Pace

1:13:12

30% of race

Time at Slower Pace

35:32

15% of race

Average Pace: 9:10 /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 mi10:59:3626:078:2426:07
8:24
#19359
10K
6.21 mi11:25:5452:258:2626:18
8:28
#19465
15K
9.32 mi11:52:091:18:408:2626:15
8:27
#19300
20K
12.43 mi12:18:261:44:578:2726:17
8:28
#18935
Half
13.11 mi12:24:101:50:418:275:44
8:24
#18916
25K
15.53 mi12:45:072:11:388:2820:57
8:38
#18757
30K
18.64 mi13:14:202:40:518:3829:13
9:24
#18916
20M
20.00 mi13:28:062:54:378:4413:46
10:08
#19180
21M
21.00 mi13:40:283:06:598:5412:22
12:22
#19727
35K
21.75 mi13:47:383:14:098:567:10
9:35
#19763
23M
23.00 mi14:00:223:26:539:0012:44
10:10
#19887
24M
24.00 mi14:10:503:37:219:0310:28
10:28
#20081
40K
24.85 mi14:19:373:46:089:068:47
10:16
#20167
25.2M
25.20 mi14:23:323:50:039:083:55
11:21
#20212
Finish
26.22 mi14:33:514:00:229:1010:19
10:07
#20403
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi193597119711919039(Top 67%)6926(Top 57%)6926(Top 697%)
10K6.21 mi3.10 mi19465-1067164-457164-4519614(Top 69%)7247(Top 59%)7247(Top 729%)
15K9.32 mi3.11 mi19300+1657059+1057059+10519039(Top 67%)6926(Top 57%)6926(Top 697%)
20K12.43 mi3.11 mi18935+3656866+1936866+19317965(Top 63%)6325(Top 52%)6325(Top 636%)
Half13.11 mi0.68 mi18916+196857+96857+918672(Top 66%)6731(Top 55%)6731(Top 677%)
25K15.53 mi2.42 mi18757+1596779+786779+7818070(Top 64%)6472(Top 53%)6472(Top 651%)
30K18.64 mi3.11 mi18916-1596898-1196898-11919557(Top 69%)7425(Top 61%)7425(Top 747%)
20M20.00 mi1.36 mi19180-2647082-1847082-18421387(Top 75%)8565(Top 70%)8565(Top 862%)
21M21.00 mi1.00 mi19727-5477419-3377419-33724205(Top 85%)10135(Top 83%)10135(Top 1020%)
35K21.75 mi0.75 mi19763-367456-377456-3720629(Top 73%)8311(Top 68%)8311(Top 836%)
23M23.00 mi1.25 mi19887-1247560-1047560-10421028(Top 74%)8564(Top 70%)8564(Top 862%)
24M24.00 mi1.00 mi20081-1947681-1217681-12122723(Top 80%)9492(Top 78%)9492(Top 955%)
40K24.85 mi0.85 mi20167-867753-727753-7221306(Top 75%)8820(Top 72%)8820(Top 887%)
25.2M25.20 mi0.35 mi20212-457775-227775-2221690(Top 76%)8996(Top 74%)8996(Top 905%)
Finish26.22 mi1.02 mi20403-1917892-1177892-11723304(Top 82%)9818(Top 80%)9818(Top 988%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

19039

Females

6926

F55-59

6926

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19614

Females

7247

F55-59

7247

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

19039

Females

6926

F55-59

6926

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17965

Females

6325

F55-59

6325

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18672

Females

6731

F55-59

6731

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18070

Females

6472

F55-59

6472

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19557

Females

7425

F55-59

7425

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21387

Females

8565

F55-59

8565

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24205

Females

10135

F55-59

10135

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20629

Females

8311

F55-59

8311

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

21028

Females

8564

F55-59

8564

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22723

Females

9492

F55-59

9492

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21306

Females

8820

F55-59

8820

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21690

Females

8996

F55-59

8996

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23304

Females

9818

F55-59

9818

Passing Analysis

Category:
Athletes Passed
1608
Passed By
2652
Net Change
-1044
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19359
5K → 10K200306-106#19359#19465
10K → 15K293128+165#19465#19300
15K → 20K40641+365#19300#18935
20K → Half4122+19#18935#18916
Half → 25K23475+159#18916#18757
25K → 30K191350-159#18757#18916
30K → 20M47311-264#18916#19180
20M → 21M17564-547#19180#19727
21M → 35K3268-36#19727#19763
35K → 23M60184-124#19763#19887
23M → 24M26220-194#19887#20081
24M → 40K33119-86#20081#20167
40K → 25.2M1257-45#20167#20212
25.2M → Finish16207-191#20212#20403
TOTALS16082652-1044
📊

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