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BOSTON MARATHON 2025

Nadja Yacker

Bib: 18766•F

MA

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

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
8:58/mi
27:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
55:45
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:22:56
↑ 67↓ 78
20K· 12.43 mi
9:42/mi
1:53:04
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:59:04
↑ 19↓ 370.5%
25K· 15.53 mi
11:16/mi
2:26:22
↑ 66↓ 880.2%
30K· 18.64 mi
10:26/mi
2:58:46
↑ 181↓ 1480.2%
20M
12:17/mi
3:15:27
↑ 64↓ 500.2%
21M
13:16/mi
3:28:43
↑ 106↓ 241.6%
35K· 21.75 mi
10:51/mi
3:36:50
↑ 17↓ 861.7%
23M
12:25/mi
3:52:23
↑ 23↓ 630.6%
24M
13:22/mi
4:05:45
↓ 821.3%
40K· 24.85 mi
12:14/mi
4:16:13
↓ 200.3%
25.2M
13:32/mi
4:20:53
↑ 13↓ 160.2%
Finish· 26.22 mi
11:47/mi
4:32:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:04
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:33:49
Pace11:44 /mi
📊Positive Split: 29.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5027:538:5827:53
8:58
-
10K
6.21 mi11:46:4255:458:5827:52
8:58
0:00
15K
9.32 mi12:13:531:22:568:5427:11
8:45
-0:13
20K
12.43 mi12:44:011:53:049:0630:08
9:42
+0:57
Half
13.11 mi12:50:011:59:049:056:00
8:48
-0:54
25K
15.53 mi13:17:192:26:229:2527:18
11:16
+2:28
30K
18.64 mi13:49:432:58:469:3532:24
10:26
-0:50
20M
20.00 mi14:06:243:15:279:4616:41
12:17
+1:51
21M
21.00 mi14:19:403:28:439:5613:16
13:16
+0:59
35K
21.75 mi14:27:473:36:509:588:07
10:51
-2:25
23M
23.00 mi14:43:203:52:2310:0615:33
12:25
+1:34
24M
24.00 mi14:56:424:05:4510:1413:22
13:22
+0:57
40K
24.85 mi15:07:104:16:1310:1910:28
12:14
-1:08
25.2M
25.20 mi15:11:504:20:5310:214:40
13:32
+1:18
Finish
26.22 mi15:23:504:32:5310:2512:00
11:47
-1:45

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

8:45 /mi

Average Pace

10:25 /mi

Slowest Pace

13:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:04

44% of race

Time at Steady Pace

1:19:49

29% of race

Time at Slower Pace

1:14:00

27% of race

Average Pace: 10:24 /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 mi11:18:5027:538:5827:53
8:58
#22327
10K
6.21 mi11:46:4255:458:5827:52
8:58
#22323
15K
9.32 mi12:13:531:22:568:5427:11
8:45
#21807
20K
12.43 mi12:44:011:53:049:0630:08
9:42
#22356
Half
13.11 mi12:50:011:59:049:056:00
8:48
#22281
25K
15.53 mi13:17:192:26:229:2527:18
11:16
#23181
30K
18.64 mi13:49:432:58:469:3532:24
10:26
#23064
20M
20.00 mi14:06:243:15:279:4616:41
12:17
#23343
21M
21.00 mi14:19:403:28:439:5613:16
13:16
#23553
35K
21.75 mi14:27:473:36:509:588:07
10:51
#23572
23M
23.00 mi14:43:203:52:2310:0615:33
12:25
#23756
24M
24.00 mi14:56:424:05:4510:1413:22
13:22
#24016
40K
24.85 mi15:07:104:16:1310:1910:28
12:14
#24110
25.2M
25.20 mi15:11:504:20:5310:214:40
13:32
#24144
Finish
26.22 mi15:23:504:32:5310:2512:00
11:47
#24270
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi223278817881720773(Top 73%)7874(Top 64%)7874(Top 144%)
10K6.21 mi3.10 mi22323+48795+228795+2222261(Top 78%)8746(Top 72%)8746(Top 160%)
15K9.32 mi3.11 mi21807+5168501+2948501+29420773(Top 73%)7874(Top 64%)7874(Top 144%)
20K12.43 mi3.11 mi22356-5498791-2908791-29023495(Top 83%)9423(Top 77%)9423(Top 172%)
Half13.11 mi0.68 mi22281+758757+348757+3420945(Top 74%)8028(Top 66%)8028(Top 147%)
25K15.53 mi2.42 mi23181-9009233-4769233-47625566(Top 90%)10611(Top 87%)10611(Top 194%)
30K18.64 mi3.11 mi23064+1179223+109223+1022779(Top 80%)9201(Top 75%)9201(Top 168%)
20M20.00 mi1.36 mi23343-2799388-1659388-16525643(Top 90%)10821(Top 88%)10821(Top 198%)
21M21.00 mi1.00 mi23553-2109527-1399527-13925401(Top 89%)10762(Top 88%)10762(Top 197%)
35K21.75 mi0.75 mi23572-199552-259552-2523928(Top 84%)10019(Top 82%)10019(Top 183%)
23M23.00 mi1.25 mi23756-1849669-1179669-11725697(Top 90%)10953(Top 90%)10953(Top 200%)
24M24.00 mi1.00 mi24016-2609817-1489817-14827216(Top 96%)11758(Top 96%)11758(Top 215%)
40K24.85 mi0.85 mi24110-949889-729889-7225303(Top 89%)10817(Top 88%)10817(Top 198%)
25.2M25.20 mi0.35 mi24144-349910-219910-2125744(Top 91%)11061(Top 90%)11061(Top 202%)
Finish26.22 mi1.02 mi24270-1269983-739983-7326517(Top 93%)11394(Top 93%)11394(Top 208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20773

Females

7874

F18-39

7874

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22261

Females

8746

F18-39

8746

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20773

Females

7874

F18-39

7874

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23495

Females

9423

F18-39

9423

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20945

Females

8028

F18-39

8028

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

25566

Females

10611

F18-39

10611

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22779

Females

9201

F18-39

9201

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25643

Females

10821

F18-39

10821

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25401

Females

10762

F18-39

10762

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23928

Females

10019

F18-39

10019

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25697

Females

10953

F18-39

10953

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

27216

Females

11758

F18-39

11758

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25303

Females

10817

F18-39

10817

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25744

Females

11061

F18-39

11061

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26517

Females

11394

F18-39

11394

Passing Analysis

Category:
Athletes Passed
1353
Passed By
3296
Net Change
-1943
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22327
5K → 10K256252+4#22327#22323
10K → 15K54226+516#22323#21807
15K → 20K71620-549#21807#22356
20K → Half783+75#22356#22281
Half → 25K14914-900#22281#23181
25K → 30K226109+117#23181#23064
30K → 20M27306-279#23064#23343
20M → 21M24234-210#23343#23553
21M → 35K3756-19#23553#23572
35K → 23M33217-184#23572#23756
23M → 24M6266-260#23756#24016
24M → 40K17111-94#24016#24110
40K → 25.2M943-34#24110#24144
25.2M → Finish13139-126#24144#24270
TOTALS13533296-1943
📊

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