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BOSTON MARATHON 2025

Silvia Immen

Bib: 24270•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
8:32/mi
26:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
53:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:21:45
↑ 67↓ 78
20K· 12.43 mi
10:03/mi
1:52:58
↑ 106↓ 860.1%
Half· 13.11 mi
9:16/mi
1:59:17
↑ 19↓ 370.5%
25K· 15.53 mi
10:21/mi
2:24:22
↑ 66↓ 880.2%
30K· 18.64 mi
11:04/mi
2:58:44
↑ 181↓ 1480.2%
20M
13:57/mi
3:17:42
↑ 64↓ 500.2%
21M
11:52/mi
3:29:34
↑ 106↓ 241.6%
35K· 21.75 mi
10:23/mi
3:37:20
↑ 17↓ 861.7%
23M
10:22/mi
3:50:19
↑ 23↓ 630.6%
24M
10:29/mi
4:00:48
↓ 821.3%
40K· 24.85 mi
11:07/mi
4:10:18
↓ 200.3%
25.2M
11:50/mi
4:14:23
↑ 13↓ 160.2%
Finish· 26.22 mi
9:25/mi
4:23:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:17
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:24:42
Pace11:02 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1226:328:3226:32
8:32
-
10K
6.21 mi11:52:3053:508:4027:18
8:47
+0:15
15K
9.32 mi12:20:251:21:458:4627:55
8:59
+0:12
20K
12.43 mi12:51:381:52:589:0531:13
10:03
+1:04
Half
13.11 mi12:57:571:59:179:066:19
9:16
-0:47
25K
15.53 mi13:23:022:24:229:1825:05
10:21
+1:05
30K
18.64 mi13:57:242:58:449:3534:22
11:04
+0:43
20M
20.00 mi14:16:223:17:429:5318:58
13:57
+2:53
21M
21.00 mi14:28:143:29:349:5911:52
11:52
-2:05
35K
21.75 mi14:36:003:37:2010:007:46
10:23
-1:29
23M
23.00 mi14:48:593:50:1910:0112:59
10:22
-0:01
24M
24.00 mi14:59:284:00:4810:0210:29
10:29
+0:07
40K
24.85 mi15:08:584:10:1810:049:30
11:07
+0:38
25.2M
25.20 mi15:13:034:14:2310:064:05
11:50
+0:43
Finish
26.22 mi15:22:394:23:5910:059:36
9:25
-2:25

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

8:32 /mi

Average Pace

10:05 /mi

Slowest Pace

13:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:40

37% of race

Time at Steady Pace

1:27:32

33% of race

Time at Slower Pace

1:18:47

30% of race

Average Pace: 10:04 /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 mi11:25:1226:328:3226:32
8:32
#20153
10K
6.21 mi11:52:3053:508:4027:18
8:47
#20725
15K
9.32 mi12:20:251:21:458:4627:55
8:59
#21102
20K
12.43 mi12:51:381:52:589:0531:13
10:03
#22321
Half
13.11 mi12:57:571:59:179:066:19
9:16
#22345
25K
15.53 mi13:23:022:24:229:1825:05
10:21
#22770
30K
18.64 mi13:57:242:58:449:3534:22
11:04
#23059
20M
20.00 mi14:16:223:17:429:5318:58
13:57
#23680
21M
21.00 mi14:28:143:29:349:5911:52
11:52
#23671
35K
21.75 mi14:36:003:37:2010:007:46
10:23
#23643
23M
23.00 mi14:48:593:50:1910:0112:59
10:22
#23506
24M
24.00 mi14:59:284:00:4810:0210:29
10:29
#23463
40K
24.85 mi15:08:584:10:1810:049:30
11:07
#23475
25.2M
25.20 mi15:13:034:14:2310:064:05
11:50
#23457
Finish
26.22 mi15:22:394:23:5910:059:36
9:25
#23388
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi201537594759421978(Top 77%)8540(Top 70%)8540(Top 655%)
10K6.21 mi3.10 mi20725-5727901-3077901-30721359(Top 75%)8232(Top 67%)8232(Top 632%)
15K9.32 mi3.11 mi21102-3778092-1918092-19121978(Top 77%)8540(Top 70%)8540(Top 655%)
20K12.43 mi3.11 mi22321-12198771-6798771-67924332(Top 86%)9895(Top 81%)9895(Top 759%)
Half13.11 mi0.68 mi22345-248792-218792-2122855(Top 80%)9071(Top 74%)9071(Top 696%)
25K15.53 mi2.42 mi22770-4259016-2249016-22424063(Top 85%)9777(Top 80%)9777(Top 750%)
30K18.64 mi3.11 mi23059-2899221-2059221-20524106(Top 85%)9922(Top 81%)9922(Top 761%)
20M20.00 mi1.36 mi23680-6219589-3689589-36827262(Top 96%)11688(Top 96%)11688(Top 897%)
21M21.00 mi1.00 mi23671+99596-79596-723361(Top 82%)9689(Top 79%)9689(Top 744%)
35K21.75 mi0.75 mi23643+289585+119585+1122924(Top 81%)9518(Top 78%)9518(Top 730%)
23M23.00 mi1.25 mi23506+1379531+549531+5421666(Top 76%)8907(Top 73%)8907(Top 684%)
24M24.00 mi1.00 mi23463+439521+109521+1022785(Top 80%)9532(Top 78%)9532(Top 732%)
40K24.85 mi0.85 mi23475-129543-229543-2223398(Top 82%)9897(Top 81%)9897(Top 760%)
25.2M25.20 mi0.35 mi23457+189547-49547-422922(Top 81%)9622(Top 79%)9622(Top 738%)
Finish26.22 mi1.02 mi23388+699524+239524+2320923(Top 74%)8626(Top 71%)8626(Top 662%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21978

Females

8540

F50-54

8540

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21359

Females

8232

F50-54

8232

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21978

Females

8540

F50-54

8540

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24332

Females

9895

F50-54

9895

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22855

Females

9071

F50-54

9071

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24063

Females

9777

F50-54

9777

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24106

Females

9922

F50-54

9922

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

27262

Females

11688

F50-54

11688

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23361

Females

9689

F50-54

9689

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

22924

Females

9518

F50-54

9518

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21666

Females

8907

F50-54

8907

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22785

Females

9532

F50-54

9532

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23398

Females

9897

F50-54

9897

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

22922

Females

9622

F50-54

9622

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

20923

Females

8626

F50-54

8626

Passing Analysis

Category:
Athletes Passed
886
Passed By
4121
Net Change
-3235
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20153
5K → 10K100672-572#20153#20725
10K → 15K88465-377#20725#21102
15K → 20K251244-1219#21102#22321
20K → Half2549-24#22321#22345
Half → 25K51476-425#22345#22770
25K → 30K80369-289#22770#23059
30K → 20M11632-621#23059#23680
20M → 21M7465+9#23680#23671
21M → 35K6032+28#23671#23643
35K → 23M14811+137#23643#23506
23M → 24M6320+43#23506#23463
24M → 40K4254-12#23463#23475
40K → 25.2M3719+18#23475#23457
25.2M → Finish8213+69#23457#23388
TOTALS8864121-3235
📊

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