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BOSTON MARATHON 2025

Amy Nieland

Bib: 17018•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 48%
Masters (Masters Women)
#0 / 6759
Top 36%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:12
Rank: #14738
Start → 5K
24:12 | 7:47/mi
10K· 6.21 mi
48:57
Rank: #15475 (-737)
5K → 10K
24:45 | 7:58/mi
15K· 9.32 mi
1:14:20
Rank: #16128 (-653)
10K → 15K
25:23 | 8:10/mi
20K· 12.43 mi
1:40:14
Rank: #16426 (-298)
15K → 20K
25:54 | 8:20/mi
Half· 13.11 mi
1:45:54
Rank: #16524 (-98)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:06:38
Rank: #16657 (-133)
Half → 25K
20:44 | 8:33/mi
30K· 18.64 mi
2:34:55
Rank: #16895 (-238)
25K → 30K
28:17 | 9:06/mi
20M
2:47:43
Rank: #17052 (-157)
30K → 20M
12:48 | 9:25/mi
21M
2:57:35
Rank: #17071 (-19)
20M → 21M
9:52 | 9:52/mi
35K· 21.75 mi
3:03:57
Rank: #17005 (+66)
21M → 35K
6:22 | 8:31/mi
23M
3:15:07
Rank: #16904 (+101)
35K → 23M
11:10 | 8:55/mi
24M
3:23:43
Rank: #16818 (+86)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:31:09
Rank: #16710 (+108)
24M → 40K
7:26 | 8:42/mi
25.2M
3:34:39
Rank: #16734 (-24)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:43:23
Rank: #16714 (+20)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:54
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:57:29
Pace8:58 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5624:127:4724:12
7:47
-
10K
6.21 mi11:39:4148:577:5324:45
7:58
+0:11
15K
9.32 mi12:05:041:14:207:5925:23
8:10
+0:12
20K
12.43 mi12:30:581:40:148:0425:54
8:20
+0:10
Half
13.11 mi12:36:381:45:548:055:40
8:18
-0:02
25K
15.53 mi12:57:222:06:388:0920:44
8:33
+0:15
30K
18.64 mi13:25:392:34:558:1928:17
9:06
+0:33
20M
20.00 mi13:38:272:47:438:2312:48
9:25
+0:19
21M
21.00 mi13:48:192:57:358:279:52
9:52
+0:27
35K
21.75 mi13:54:413:03:578:276:22
8:31
-1:21
23M
23.00 mi14:05:513:15:078:2911:10
8:55
+0:24
24M
24.00 mi14:14:273:23:438:298:36
8:36
-0:19
40K
24.85 mi14:21:533:31:098:307:26
8:42
+0:06
25.2M
25.20 mi14:25:233:34:398:313:30
10:09
+1:27
Finish
26.22 mi14:34:073:43:238:328:44
8:34
-1:35

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

7:47 /mi

Average Pace

8:32 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:20

33% of race

Time at Steady Pace

1:23:26

37% of race

Time at Slower Pace

1:05:37

29% of race

Average Pace: 8:31 /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 mi11:14:5624:127:4724:12
7:47
#14738
10K
6.21 mi11:39:4148:577:5324:45
7:58
#15475
15K
9.32 mi12:05:041:14:207:5925:23
8:10
#16128
20K
12.43 mi12:30:581:40:148:0425:54
8:20
#16426
Half
13.11 mi12:36:381:45:548:055:40
8:18
#16524
25K
15.53 mi12:57:222:06:388:0920:44
8:33
#16657
30K
18.64 mi13:25:392:34:558:1928:17
9:06
#16895
20M
20.00 mi13:38:272:47:438:2312:48
9:25
#17052
21M
21.00 mi13:48:192:57:358:279:52
9:52
#17071
35K
21.75 mi13:54:413:03:578:276:22
8:31
#17005
23M
23.00 mi14:05:513:15:078:2911:10
8:55
#16904
24M
24.00 mi14:14:273:23:438:298:36
8:36
#16818
40K
24.85 mi14:21:533:31:098:307:26
8:42
#16710
25.2M
25.20 mi14:25:233:34:398:313:30
10:09
#16734
Finish
26.22 mi14:34:073:43:238:328:44
8:34
#16714
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi147384375437517210(Top 61%)5854(Top 48%)5854(Top 341%)
10K6.21 mi3.10 mi15475-7374821-4464821-44616219(Top 57%)5259(Top 43%)5259(Top 306%)
15K9.32 mi3.11 mi16128-6535216-3955216-39517210(Top 61%)5854(Top 48%)5854(Top 341%)
20K12.43 mi3.11 mi16426-2985391-1755391-17517146(Top 60%)5852(Top 48%)5852(Top 341%)
Half13.11 mi0.68 mi16524-985452-615452-6117981(Top 63%)6298(Top 52%)6298(Top 367%)
25K15.53 mi2.42 mi16657-1335560-1085560-10817497(Top 62%)6134(Top 50%)6134(Top 357%)
30K18.64 mi3.11 mi16895-2385749-1895749-18918196(Top 64%)6688(Top 55%)6688(Top 389%)
20M20.00 mi1.36 mi17052-1575878-1295878-12918830(Top 66%)7170(Top 59%)7170(Top 417%)
21M21.00 mi1.00 mi17071-195921-435921-4317781(Top 63%)6678(Top 55%)6678(Top 389%)
35K21.75 mi0.75 mi17005+665901+205901+2015568(Top 55%)5558(Top 45%)5558(Top 324%)
23M23.00 mi1.25 mi16904+1015883+185883+1815812(Top 56%)5783(Top 47%)5783(Top 337%)
24M24.00 mi1.00 mi16818+865851+325851+3215193(Top 53%)5491(Top 45%)5491(Top 320%)
40K24.85 mi0.85 mi16710+1085819+325819+3214617(Top 51%)5316(Top 43%)5316(Top 309%)
25.2M25.20 mi0.35 mi16734-245848-295848-2917708(Top 62%)6960(Top 57%)6960(Top 405%)
Finish26.22 mi1.02 mi16714+205859-115859-1116693(Top 59%)6398(Top 52%)6398(Top 372%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17210

Females

5854

F40-44

5854

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16219

Females

5259

F40-44

5259

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17210

Females

5854

F40-44

5854

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

17146

Females

5852

F40-44

5852

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17981

Females

6298

F40-44

6298

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17497

Females

6134

F40-44

6134

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18196

Females

6688

F40-44

6688

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18830

Females

7170

F40-44

7170

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17781

Females

6678

F40-44

6678

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15568

Females

5558

F40-44

5558

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15812

Females

5783

F40-44

5783

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

15193

Females

5491

F40-44

5491

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14617

Females

5316

F40-44

5316

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17708

Females

6960

F40-44

6960

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

16693

Females

6398

F40-44

6398

Passing Analysis

Category:
Athletes Passed
1355
Passed By
3331
Net Change
-1976
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14738
5K → 10K94831-737#14738#15475
10K → 15K61714-653#15475#16128
15K → 20K127425-298#16128#16426
20K → Half12110-98#16426#16524
Half → 25K122255-133#16524#16657
25K → 30K151389-238#16657#16895
30K → 20M53210-157#16895#17052
20M → 21M110129-19#17052#17071
21M → 35K10236+66#17071#17005
35K → 23M16564+101#17005#16904
23M → 24M11630+86#16904#16818
24M → 40K13830+108#16818#16710
40K → 25.2M2347-24#16710#16734
25.2M → Finish8161+20#16734#16714
TOTALS13553331-1976
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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