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BOSTON MARATHON 2025

Amanda Mosborg

Bib: 2931•F

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Female)
#0 / 12228
Top 0.3%
Division (F18-39)
#0 / 5469
Top 0.6%
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
6:10/mi
19:09
↑ 97↓ 3451.5%
10K· 6.21 mi
6:06/mi
38:06
↑ 79↓ 1380.4%
15K· 9.32 mi
6:00/mi
56:46
↑ 67↓ 78
20K· 12.43 mi
6:00/mi
1:15:23
↑ 106↓ 860.1%
Half· 13.11 mi
5:46/mi
1:19:19
↑ 19↓ 370.5%
25K· 15.53 mi
5:53/mi
1:33:34
↑ 66↓ 880.2%
30K· 18.64 mi
5:55/mi
1:51:57
↑ 181↓ 1480.2%
20M
5:54/mi
1:59:58
↑ 64↓ 500.2%
21M
6:13/mi
2:06:11
↑ 106↓ 241.6%
35K· 21.75 mi
5:50/mi
2:10:33
↑ 17↓ 861.7%
23M
6:02/mi
2:18:06
↑ 23↓ 630.6%
24M
5:50/mi
2:23:56
↓ 821.3%
40K· 24.85 mi
6:01/mi
2:29:05
↓ 200.3%
25.2M
6:34/mi
2:31:21
↑ 13↓ 160.2%
Finish· 26.22 mi
5:48/mi
2:37:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:19:19
Pace6:03 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:17:57
Pace5:57 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5819:096:1019:09
6:10
-
10K
6.21 mi10:38:5538:066:0818:57
6:06
-0:04
15K
9.32 mi10:57:3556:466:0518:40
6:00
-0:06
20K
12.43 mi11:16:121:15:236:0418:37
6:00
0:00
Half
13.11 mi11:20:081:19:196:033:56
5:46
-0:14
25K
15.53 mi11:34:231:33:346:0114:15
5:53
+0:07
30K
18.64 mi11:52:461:51:576:0018:23
5:55
+0:02
20M
20.00 mi12:00:471:59:586:008:01
5:54
-0:01
21M
21.00 mi12:07:002:06:116:016:13
6:13
+0:19
35K
21.75 mi12:11:222:10:336:004:22
5:50
-0:23
23M
23.00 mi12:18:552:18:066:007:33
6:02
+0:12
24M
24.00 mi12:24:452:23:566:005:50
5:50
-0:12
40K
24.85 mi12:29:542:29:056:005:09
6:01
+0:11
25.2M
25.20 mi12:32:102:31:216:002:16
6:34
+0:33
Finish
26.22 mi12:38:052:37:166:005:55
5:48
-0:46

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

5:46 /mi

Average Pace

6:00 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:00

99% of race

Time at Steady Pace

2:16

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:00 /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 mi10:19:5819:096:1019:09
6:10
#1680
10K
6.21 mi10:38:5538:066:0818:57
6:06
#1566
15K
9.32 mi10:57:3556:466:0518:40
6:00
#1366
20K
12.43 mi11:16:121:15:236:0418:37
6:00
#1194
Half
13.11 mi11:20:081:19:196:033:56
5:46
#1141
25K
15.53 mi11:34:231:33:346:0114:15
5:53
#1018
30K
18.64 mi11:52:461:51:576:0018:23
5:55
#839
20M
20.00 mi12:00:471:59:586:008:01
5:54
#774
21M
21.00 mi12:07:002:06:116:016:13
6:13
#719
35K
21.75 mi12:11:222:10:336:004:22
5:50
#692
23M
23.00 mi12:18:552:18:066:007:33
6:02
#658
24M
24.00 mi12:24:452:23:566:005:50
5:50
#630
40K
24.85 mi12:29:542:29:056:005:09
6:01
#612
25.2M
25.20 mi12:32:102:31:216:002:16
6:34
#609
Finish
26.22 mi12:38:052:37:166:005:55
5:48
#589
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi168077771066(Top 4%)55(Top 0.4%)55(Top 1%)
10K6.21 mi3.10 mi1566+11471+671+61473(Top 5%)67(Top 0.5%)67(Top 1%)
15K9.32 mi3.11 mi1366+20063+863+81066(Top 4%)55(Top 0.4%)55(Top 1%)
20K12.43 mi3.11 mi1194+17258+558+5853(Top 3%)47(Top 0.4%)47(Top 0.9%)
Half13.11 mi0.68 mi1141+5357+157+1540(Top 2%)30(Top 0.2%)30(Top 0.5%)
25K15.53 mi2.42 mi1018+12356+156+1537(Top 2%)37(Top 0.3%)37(Top 0.7%)
30K18.64 mi3.11 mi839+17948+848+8384(Top 1%)25(Top 0.2%)25(Top 0.5%)
20M20.00 mi1.36 mi774+6546+246+2279(Top 1.0%)19(Top 0.2%)19(Top 0.3%)
21M21.00 mi1.00 mi719+5544+244+2279(Top 1.0%)16(Top 0.1%)16(Top 0.3%)
35K21.75 mi0.75 mi692+274444441(Top 2%)28(Top 0.2%)28(Top 0.5%)
23M23.00 mi1.25 mi658+344444396(Top 1%)21(Top 0.2%)21(Top 0.4%)
24M24.00 mi1.00 mi630+284444318(Top 1%)21(Top 0.2%)21(Top 0.4%)
40K24.85 mi0.85 mi612+184444430(Top 2%)27(Top 0.2%)27(Top 0.5%)
25.2M25.20 mi0.35 mi609+34444592(Top 2%)38(Top 0.3%)38(Top 0.7%)
Finish26.22 mi1.02 mi589+2042+242+2533(Top 2%)31(Top 0.3%)31(Top 0.6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1066

Females

55

F18-39

55

5K→10K

3.1 - 6.2 mi

Top 5%
×5story building
+79ft-138ft

Overall

1473

Females

67

F18-39

67

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1066

Females

55

F18-39

55

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

853

Females

47

F18-39

47

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

540

Females

30

F18-39

30

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

537

Females

37

F18-39

37

25K→30K

15.5 - 18.6 mi

Top 1%
×9story building
+181ft-148ft

Overall

384

Females

25

F18-39

25

30K→20M

18.6 - 20.0 mi

Top 1.0%
×5story building
+64ft-50ft

Overall

279

Females

19

F18-39

19

20M→21M

20.0 - 21.0 mi

Top 1.0%
×8story building
+106ft-24ft

Overall

279

Females

16

F18-39

16

21M→35K

21.0 - 21.8 mi

Top 2%
×7story building
+17ft-86ft

Overall

441

Females

28

F18-39

28

35K→23M

21.8 - 23.0 mi

Top 1%
×5story building
+23ft-63ft

Overall

396

Females

21

F18-39

21

23M→24M

23.0 - 24.0 mi

Top 1%
×6story building
+12ft-82ft

Overall

318

Females

21

F18-39

21

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

430

Females

27

F18-39

27

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

592

Females

38

F18-39

38

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

533

Females

31

F18-39

31

Passing Analysis

Category:
Athletes Passed
1145
Passed By
54
Net Change
+1091
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1680
5K → 10K15440+114#1680#1566
10K → 15K2011+200#1566#1366
15K → 20K1742+172#1366#1194
20K → Half530+53#1194#1141
Half → 25K1230+123#1141#1018
25K → 30K1790+179#1018#839
30K → 20M661+65#839#774
20M → 21M550+55#774#719
21M → 35K281+27#719#692
35K → 23M373+34#692#658
23M → 24M280+28#658#630
24M → 40K191+18#630#612
40K → 25.2M41+3#612#609
25.2M → Finish244+20#609#589
TOTALS114554+1091
📊

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