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BOSTON MARATHON 2025

Natasja Thiel

Bib: 22005•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
Division (F50-54)
#0 / 1303
Top 36%
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
26:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:27/mi
52:21
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:18:48
↑ 67↓ 78
20K· 12.43 mi
8:38/mi
1:45:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:51:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:12:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:52/mi
2:40:14
↑ 181↓ 1480.2%
20M
8:51/mi
2:52:16
↑ 64↓ 500.2%
21M
9:19/mi
3:01:35
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
3:08:15
↑ 17↓ 861.7%
23M
8:50/mi
3:19:18
↑ 23↓ 630.6%
24M
8:42/mi
3:28:00
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:35:24
↓ 200.3%
25.2M
9:20/mi
3:38:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:46:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:28
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:55:29
Pace8:49 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4526:058:2426:05
8:24
-
10K
6.21 mi11:47:0152:218:2526:16
8:27
+0:03
15K
9.32 mi12:13:281:18:488:2726:27
8:31
+0:04
20K
12.43 mi12:40:181:45:388:3026:50
8:38
+0:07
Half
13.11 mi12:46:081:51:288:305:50
8:33
-0:05
25K
15.53 mi13:07:222:12:428:3321:14
8:45
+0:12
30K
18.64 mi13:34:542:40:148:3627:32
8:52
+0:07
20M
20.00 mi13:46:562:52:168:3712:02
8:51
-0:01
21M
21.00 mi13:56:153:01:358:399:19
9:19
+0:28
35K
21.75 mi14:02:553:08:158:396:40
8:55
-0:24
23M
23.00 mi14:13:583:19:188:4011:03
8:50
-0:05
24M
24.00 mi14:22:403:28:008:408:42
8:42
-0:08
40K
24.85 mi14:30:043:35:248:407:24
8:39
-0:03
25.2M
25.20 mi14:33:173:38:378:413:13
9:20
+0:41
Finish
26.22 mi14:41:373:46:578:408:20
8:11
-1:09

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

8:11 /mi

Average Pace

8:40 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:25

94% of race

Time at Steady Pace

12:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:39 /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 mi11:20:4526:058:2426:05
8:24
#19290
10K
6.21 mi11:47:0152:218:2526:16
8:27
#19395
15K
9.32 mi12:13:281:18:488:2726:27
8:31
#19381
20K
12.43 mi12:40:181:45:388:3026:50
8:38
#19268
Half
13.11 mi12:46:081:51:288:305:50
8:33
#19275
25K
15.53 mi13:07:222:12:428:3321:14
8:45
#19172
30K
18.64 mi13:34:542:40:148:3627:32
8:52
#18721
20M
20.00 mi13:46:562:52:168:3712:02
8:51
#18513
21M
21.00 mi13:56:153:01:358:399:19
9:19
#18285
35K
21.75 mi14:02:553:08:158:396:40
8:55
#18256
23M
23.00 mi14:13:583:19:188:4011:03
8:50
#18065
24M
24.00 mi14:22:403:28:008:408:42
8:42
#17937
40K
24.85 mi14:30:043:35:248:407:24
8:39
#17797
25.2M
25.20 mi14:33:173:38:378:413:13
9:20
#17720
Finish
26.22 mi14:41:373:46:578:408:20
8:11
#17589
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi192907074707419411(Top 68%)7125(Top 58%)7125(Top 547%)
10K6.21 mi3.10 mi19395-1057117-437117-4319543(Top 69%)7196(Top 59%)7196(Top 552%)
15K9.32 mi3.11 mi19381+147112+57112+519411(Top 68%)7125(Top 58%)7125(Top 547%)
20K12.43 mi3.11 mi19268+1137056+567056+5619061(Top 67%)6947(Top 57%)6947(Top 533%)
Half13.11 mi0.68 mi19275-77068-127068-1219534(Top 69%)7190(Top 59%)7190(Top 552%)
25K15.53 mi2.42 mi19172+1037011+577011+5718717(Top 66%)6821(Top 56%)6821(Top 523%)
30K18.64 mi3.11 mi18721+4516782+2296782+22916967(Top 60%)6014(Top 49%)6014(Top 462%)
20M20.00 mi1.36 mi18513+2086697+856697+8516000(Top 56%)5600(Top 46%)5600(Top 430%)
21M21.00 mi1.00 mi18285+2286599+986599+9815266(Top 54%)5330(Top 44%)5330(Top 409%)
35K21.75 mi0.75 mi18256+296599659917822(Top 63%)6798(Top 56%)6798(Top 522%)
23M23.00 mi1.25 mi18065+1916528+716528+7115275(Top 54%)5485(Top 45%)5485(Top 421%)
24M24.00 mi1.00 mi17937+1286491+376491+3715779(Top 56%)5797(Top 47%)5797(Top 445%)
40K24.85 mi0.85 mi17797+1406434+576434+5714413(Top 51%)5205(Top 43%)5205(Top 399%)
25.2M25.20 mi0.35 mi17720+776406+286406+2813718(Top 48%)4898(Top 40%)4898(Top 376%)
Finish26.22 mi1.02 mi17589+1316354+526354+5214162(Top 50%)5038(Top 41%)5038(Top 387%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19411

Females

7125

F50-54

7125

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19543

Females

7196

F50-54

7196

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19411

Females

7125

F50-54

7125

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19061

Females

6947

F50-54

6947

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19534

Females

7190

F50-54

7190

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18717

Females

6821

F50-54

6821

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16967

Females

6014

F50-54

6014

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

16000

Females

5600

F50-54

5600

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15266

Females

5330

F50-54

5330

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17822

Females

6798

F50-54

6798

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15275

Females

5485

F50-54

5485

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15779

Females

5797

F50-54

5797

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14413

Females

5205

F50-54

5205

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13718

Females

4898

F50-54

4898

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14162

Females

5038

F50-54

5038

Passing Analysis

Category:
Athletes Passed
2660
Passed By
959
Net Change
+1701
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19290
5K → 10K203308-105#19290#19395
10K → 15K207193+14#19395#19381
15K → 20K246133+113#19381#19268
20K → Half3441-7#19268#19275
Half → 25K220117+103#19275#19172
25K → 30K48938+451#19172#18721
30K → 20M22618+208#18721#18513
20M → 21M24113+228#18513#18285
21M → 35K7142+29#18285#18256
35K → 23M20918+191#18256#18065
23M → 24M14618+128#18065#17937
24M → 40K1422+140#17937#17797
40K → 25.2M825+77#17797#17720
25.2M → Finish14413+131#17720#17589
TOTALS2660959+1701
📊

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