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BOSTON MARATHON 2025

Samantha Thiel

CO

Bib: 14448 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:51/mi
24:24
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:01/mi
49:19
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:06/mi
1:14:29
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:32/mi
1:41:00
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:24/mi
1:46:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:48/mi
2:08:05
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:12/mi
2:36:40
↑ 181↓ 1480.2%
138 ft elev
20M
9:07/mi
2:49:03
↑ 64↓ 500.2%
148 ft elev
21M
9:54/mi
2:58:57
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:12/mi
3:05:50
↑ 17↓ 861.7%
156 ft elev
23M
8:58/mi
3:17:04
↑ 23↓ 630.6%
116 ft elev
24M
9:04/mi
3:26:08
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:16/mi
3:34:03
↓ 200.3%
20 ft elev
25.2M
10:06/mi
3:37:32
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:28/mi
3:46:10
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:44
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:59:26
Pace9:07 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4924:247:5124:24
7:51
-
10K
6.21 mi11:19:4449:197:5624:55
8:01
+0:10
15K
9.32 mi11:44:541:14:297:5925:10
8:06
+0:05
20K
12.43 mi12:11:251:41:008:0826:31
8:32
+0:26
Half
13.11 mi12:17:091:46:448:085:44
8:24
-0:08
25K
15.53 mi12:38:302:08:058:1521:21
8:48
+0:24
30K
18.64 mi13:07:052:36:408:2428:35
9:12
+0:24
20M
20.00 mi13:19:282:49:038:2712:23
9:07
-0:05
21M
21.00 mi13:29:222:58:578:319:54
9:54
+0:47
35K
21.75 mi13:36:153:05:508:336:53
9:12
-0:42
23M
23.00 mi13:47:293:17:048:3411:14
8:58
-0:14
24M
24.00 mi13:56:333:26:088:359:04
9:04
+0:06
40K
24.85 mi14:04:283:34:038:377:55
9:16
+0:12
25.2M
25.20 mi14:07:573:37:328:383:29
10:06
+0:50
Finish
26.22 mi14:16:353:46:108:388:38
8:28
-1:38

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

7:51 /mi

Average Pace

8:38 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:22

51% of race

Time at Steady Pace

1:37:25

43% of race

Time at Slower Pace

13:23

6% of race

Average Pace: 8:38 /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 mi10:54:4924:247:5124:24
7:51
#15304
10K
6.21 mi11:19:4449:197:5624:55
8:01
#15996
15K
9.32 mi11:44:541:14:297:5925:10
8:06
#16265
20K
12.43 mi12:11:251:41:008:0826:31
8:32
#16875
Half
13.11 mi12:17:091:46:448:085:44
8:24
#16969
25K
15.53 mi12:38:302:08:058:1521:21
8:48
#17249
30K
18.64 mi13:07:052:36:408:2428:35
9:12
#17501
20M
20.00 mi13:19:282:49:038:2712:23
9:07
#17474
21M
21.00 mi13:29:222:58:578:319:54
9:54
#17503
35K
21.75 mi13:36:153:05:508:336:53
9:12
#17573
23M
23.00 mi13:47:293:17:048:3411:14
8:58
#17460
24M
24.00 mi13:56:333:26:088:359:04
9:04
#17474
40K
24.85 mi14:04:283:34:038:377:55
9:16
#17482
25.2M
25.20 mi14:07:573:37:328:383:29
10:06
#17477
Finish
26.22 mi14:16:353:46:108:388:38
8:28
#17419
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi153044719471916753(Top 59%)5588(Top 46%)5588(Top 102%)
10K6.21 mi3.10 mi15996-6925135-4165135-41616653(Top 59%)5516(Top 45%)5516(Top 101%)
15K9.32 mi3.11 mi16265-2695291-1565291-15616753(Top 59%)5588(Top 46%)5588(Top 102%)
20K12.43 mi3.11 mi16875-6105664-3735664-37318470(Top 65%)6609(Top 54%)6609(Top 121%)
Half13.11 mi0.68 mi16969-945728-645728-6418636(Top 66%)6695(Top 55%)6695(Top 122%)
25K15.53 mi2.42 mi17249-2805913-1855913-18518965(Top 67%)6956(Top 57%)6956(Top 127%)
30K18.64 mi3.11 mi17501-2526121-2086121-20818640(Top 66%)6913(Top 57%)6913(Top 126%)
20M20.00 mi1.36 mi17474+276133-126133-1217383(Top 61%)6356(Top 52%)6356(Top 116%)
21M21.00 mi1.00 mi17503-296172-396172-3917912(Top 63%)6742(Top 55%)6742(Top 123%)
35K21.75 mi0.75 mi17573-706228-566228-5619181(Top 68%)7541(Top 62%)7541(Top 138%)
23M23.00 mi1.25 mi17460+1136203+256203+2516121(Top 57%)5955(Top 49%)5955(Top 109%)
24M24.00 mi1.00 mi17474-146230-276230-2717708(Top 62%)6874(Top 56%)6874(Top 126%)
40K24.85 mi0.85 mi17482-86268-386268-3817664(Top 62%)6951(Top 57%)6951(Top 127%)
25.2M25.20 mi0.35 mi17477+56277-96277-917506(Top 62%)6860(Top 56%)6860(Top 125%)
Finish26.22 mi1.02 mi17419+586267+106267+1016061(Top 57%)6056(Top 50%)6056(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16753

Females

5588

F18-39

5588

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16653

Females

5516

F18-39

5516

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16753

Females

5588

F18-39

5588

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18470

Females

6609

F18-39

6609

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18636

Females

6695

F18-39

6695

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

18965

Females

6956

F18-39

6956

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18640

Females

6913

F18-39

6913

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

17383

Females

6356

F18-39

6356

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17912

Females

6742

F18-39

6742

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19181

Females

7541

F18-39

7541

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16121

Females

5955

F18-39

5955

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17708

Females

6874

F18-39

6874

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17664

Females

6951

F18-39

6951

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17506

Females

6860

F18-39

6860

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16061

Females

6056

F18-39

6056

Passing Analysis

Category:
Athletes Passed
1220
Passed By
3335
Net Change
-2115
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15304
5K → 10K109801-692#15304#15996
10K → 15K120389-269#15996#16265
15K → 20K65675-610#16265#16875
20K → Half13107-94#16875#16969
Half → 25K88368-280#16969#17249
25K → 30K140392-252#17249#17501
30K → 20M12699+27#17501#17474
20M → 21M92121-29#17474#17503
21M → 35K46116-70#17503#17573
35K → 23M16653+113#17573#17460
23M → 24M7488-14#17460#17474
24M → 40K6674-8#17474#17482
40K → 25.2M2924+5#17482#17477
25.2M → Finish8628+58#17477#17419
TOTALS12203335-2115
📊

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