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BOSTON MARATHON 2025

Aniko Ernst

Bib: 11502•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 7%
Masters (Masters Women)
#0 / 6759
Top 2%
Division (F45-49)
#0 / 1813
Top 2%
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
6:59/mi
21:41
↑ 97↓ 3451.5%
10K· 6.21 mi
6:53/mi
43:04
↑ 79↓ 1380.4%
15K· 9.32 mi
6:59/mi
1:04:45
↑ 67↓ 78
20K· 12.43 mi
7:06/mi
1:26:48
↑ 106↓ 860.1%
Half· 13.11 mi
7:02/mi
1:31:36
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:49:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:33/mi
2:12:50
↑ 181↓ 1480.2%
20M
7:37/mi
2:23:11
↑ 64↓ 500.2%
21M
8:13/mi
2:31:24
↑ 106↓ 241.6%
35K· 21.75 mi
7:17/mi
2:36:51
↑ 17↓ 861.7%
23M
7:27/mi
2:46:11
↑ 23↓ 630.6%
24M
7:04/mi
2:53:15
↓ 821.3%
40K· 24.85 mi
7:05/mi
2:59:18
↓ 200.3%
25.2M
7:38/mi
3:01:56
↑ 13↓ 160.2%
Finish· 26.22 mi
6:46/mi
3:08:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:36
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:37:14
Pace7:25 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0121:416:5921:41
6:59
-
10K
6.21 mi11:09:2443:046:5621:23
6:53
-0:06
15K
9.32 mi11:31:051:04:456:5721:41
6:59
+0:06
20K
12.43 mi11:53:081:26:486:5922:03
7:06
+0:07
Half
13.11 mi11:57:561:31:366:594:48
7:02
-0:04
25K
15.53 mi12:15:431:49:237:0217:47
7:20
+0:18
30K
18.64 mi12:39:102:12:507:0823:27
7:33
+0:13
20M
20.00 mi12:49:312:23:117:1010:21
7:37
+0:04
21M
21.00 mi12:57:442:31:247:138:13
8:13
+0:36
35K
21.75 mi13:03:112:36:517:135:27
7:17
-0:56
23M
23.00 mi13:12:312:46:117:149:20
7:27
+0:10
24M
24.00 mi13:19:352:53:157:137:04
7:04
-0:23
40K
24.85 mi13:25:382:59:187:136:03
7:05
+0:01
25.2M
25.20 mi13:28:163:01:567:132:38
7:38
+0:33
Finish
26.22 mi13:35:103:08:507:126:54
6:46
-0:52

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

6:46 /mi

Average Pace

7:12 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:17

15% of race

Time at Steady Pace

1:23:20

44% of race

Time at Slower Pace

1:17:13

41% of race

Average Pace: 7:12 /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 mi10:48:0121:416:5921:41
6:59
#7671
10K
6.21 mi11:09:2443:046:5621:23
6:53
#7382
15K
9.32 mi11:31:051:04:456:5721:41
6:59
#7419
20K
12.43 mi11:53:081:26:486:5922:03
7:06
#7397
Half
13.11 mi11:57:561:31:366:594:48
7:02
#7410
25K
15.53 mi12:15:431:49:237:0217:47
7:20
#7530
30K
18.64 mi12:39:102:12:507:0823:27
7:33
#7518
20M
20.00 mi12:49:312:23:117:1010:21
7:37
#7447
21M
21.00 mi12:57:442:31:247:138:13
8:13
#7440
35K
21.75 mi13:03:112:36:517:135:27
7:17
#7396
23M
23.00 mi13:12:312:46:117:149:20
7:27
#7286
24M
24.00 mi13:19:352:53:157:137:04
7:04
#7129
40K
24.85 mi13:25:382:59:187:136:03
7:05
#6969
25.2M
25.20 mi13:28:163:01:567:132:38
7:38
#6892
Finish
26.22 mi13:35:103:08:507:126:54
6:46
#6725
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi76718758757496(Top 26%)867(Top 7%)867(Top 48%)
10K6.21 mi3.10 mi7382+289792+83792+837125(Top 25%)736(Top 6%)736(Top 41%)
15K9.32 mi3.11 mi7419-37814-22814-227496(Top 26%)867(Top 7%)867(Top 48%)
20K12.43 mi3.11 mi7397+22823-9823-97504(Top 26%)930(Top 8%)930(Top 51%)
Half13.11 mi0.68 mi7410-13826-3826-37878(Top 28%)1037(Top 8%)1037(Top 57%)
25K15.53 mi2.42 mi7530-120885-59885-598639(Top 30%)1477(Top 12%)1477(Top 81%)
30K18.64 mi3.11 mi7518+12922-37922-378083(Top 28%)1421(Top 12%)1421(Top 78%)
20M20.00 mi1.36 mi7447+71936-14936-147810(Top 27%)1461(Top 12%)1461(Top 81%)
21M21.00 mi1.00 mi7440+7974-38974-388690(Top 31%)2017(Top 16%)2017(Top 111%)
35K21.75 mi0.75 mi7396+44983-9983-97161(Top 25%)1338(Top 11%)1338(Top 74%)
23M23.00 mi1.25 mi7286+110986-3986-36389(Top 22%)1157(Top 9%)1157(Top 64%)
24M24.00 mi1.00 mi7129+157961+25961+255064(Top 18%)748(Top 6%)748(Top 41%)
40K24.85 mi0.85 mi6969+160933+28933+284382(Top 15%)608(Top 5%)608(Top 34%)
25.2M25.20 mi0.35 mi6892+77919+14919+144122(Top 15%)600(Top 5%)600(Top 33%)
Finish26.22 mi1.02 mi6725+167899+20899+204362(Top 15%)655(Top 5%)655(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7496

Females

867

F45-49

867

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

7125

Females

736

F45-49

736

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7496

Females

867

F45-49

867

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7504

Females

930

F45-49

930

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7878

Females

1037

F45-49

1037

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8639

Females

1477

F45-49

1477

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

8083

Females

1421

F45-49

1421

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7810

Females

1461

F45-49

1461

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8690

Females

2017

F45-49

2017

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

7161

Females

1338

F45-49

1338

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

6389

Females

1157

F45-49

1157

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

5064

Females

748

F45-49

748

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4382

Females

608

F45-49

608

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4122

Females

600

F45-49

600

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4362

Females

655

F45-49

655

Passing Analysis

Category:
Athletes Passed
1929
Passed By
983
Net Change
+946
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7671
5K → 10K36475+289#7671#7382
10K → 15K130167-37#7382#7419
15K → 20K136114+22#7419#7397
20K → Half2538-13#7397#7410
Half → 25K72192-120#7410#7530
25K → 30K183171+12#7530#7518
30K → 20M13564+71#7518#7447
20M → 21M8780+7#7447#7440
21M → 35K7127+44#7440#7396
35K → 23M14232+110#7396#7286
23M → 24M1658+157#7286#7129
24M → 40K1644+160#7129#6969
40K → 25.2M792+77#6969#6892
25.2M → Finish1769+167#6892#6725
TOTALS1929983+946
📊

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