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BOSTON MARATHON 2025

Loes St Ather

Bib: 27966•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

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
8:56/mi
27:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:48/mi
55:05
↑ 79↓ 1380.4%
15K· 9.32 mi
9:01/mi
1:23:05
↑ 67↓ 78
20K· 12.43 mi
9:21/mi
1:52:08
↑ 106↓ 860.1%
Half· 13.11 mi
9:24/mi
1:58:33
↑ 19↓ 370.5%
25K· 15.53 mi
10:12/mi
2:23:18
↑ 66↓ 880.2%
30K· 18.64 mi
10:14/mi
2:55:07
↑ 181↓ 1480.2%
20M
9:32/mi
3:08:04
↑ 64↓ 500.2%
21M
9:34/mi
3:17:38
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
3:24:01
↑ 17↓ 861.7%
23M
8:36/mi
3:34:47
↑ 23↓ 630.6%
24M
8:16/mi
3:43:03
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:50:11
↓ 200.3%
25.2M
9:02/mi
3:53:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
4:01:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:33
Pace9:03 /mi
2nd Half
Distance13.11 mi
Time2:03:08
Pace9:24 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4127:468:5627:46
8:56
-
10K
6.21 mi12:12:0055:058:5227:19
8:48
-0:08
15K
9.32 mi12:40:001:23:058:5528:00
9:01
+0:13
20K
12.43 mi13:09:031:52:089:0129:03
9:21
+0:20
Half
13.11 mi13:15:281:58:339:036:25
9:24
+0:03
25K
15.53 mi13:40:132:23:189:1324:45
10:12
+0:48
30K
18.64 mi14:12:022:55:079:2431:49
10:14
+0:02
20M
20.00 mi14:24:593:08:049:2412:57
9:32
-0:42
21M
21.00 mi14:34:333:17:389:259:34
9:34
+0:02
35K
21.75 mi14:40:563:24:019:236:23
8:32
-1:02
23M
23.00 mi14:51:423:34:479:2010:46
8:36
+0:04
24M
24.00 mi14:59:583:43:039:188:16
8:16
-0:20
40K
24.85 mi15:07:063:50:119:167:08
8:21
+0:05
25.2M
25.20 mi15:10:133:53:189:153:07
9:02
+0:41
Finish
26.22 mi15:18:364:01:419:138:23
8:14
-0:48

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

8:14 /mi

Average Pace

9:13 /mi

Slowest Pace

10:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:56

17% of race

Time at Steady Pace

1:26:12

36% of race

Time at Slower Pace

1:54:33

47% of race

Average Pace: 9:13 /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 mi11:44:4127:468:5627:46
8:56
#22166
10K
6.21 mi12:12:0055:058:5227:19
8:48
#21783
15K
9.32 mi12:40:001:23:058:5528:00
9:01
#21882
20K
12.43 mi13:09:031:52:089:0129:03
9:21
#22033
Half
13.11 mi13:15:281:58:339:036:25
9:24
#22115
25K
15.53 mi13:40:132:23:189:1324:45
10:12
#22529
30K
18.64 mi14:12:022:55:079:2431:49
10:14
#22471
20M
20.00 mi14:24:593:08:049:2412:57
9:32
#22258
21M
21.00 mi14:34:333:17:389:259:34
9:34
#21950
35K
21.75 mi14:40:563:24:019:236:23
8:32
#21775
23M
23.00 mi14:51:423:34:479:2010:46
8:36
#21385
24M
24.00 mi14:59:583:43:039:188:16
8:16
#21090
40K
24.85 mi15:07:063:50:119:167:08
8:21
#20861
25.2M
25.20 mi15:10:133:53:189:153:07
9:02
#20752
Finish
26.22 mi15:18:364:01:419:138:23
8:14
#20597
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi221668715871522108(Top 78%)8615(Top 70%)8615(Top 158%)
10K6.21 mi3.10 mi21783+3838489+2268489+22621375(Top 75%)8241(Top 67%)8241(Top 151%)
15K9.32 mi3.11 mi21882-998534-458534-4522108(Top 78%)8615(Top 70%)8615(Top 158%)
20K12.43 mi3.11 mi22033-1518614-808614-8022419(Top 79%)8817(Top 72%)8817(Top 161%)
Half13.11 mi0.68 mi22115-828659-458659-4523279(Top 82%)9296(Top 76%)9296(Top 170%)
25K15.53 mi2.42 mi22529-4148878-2198878-21923745(Top 84%)9612(Top 79%)9612(Top 176%)
30K18.64 mi3.11 mi22471+588897-198897-1922294(Top 78%)8935(Top 73%)8935(Top 163%)
20M20.00 mi1.36 mi22258+2138792+1058792+10519330(Top 68%)7441(Top 61%)7441(Top 136%)
21M21.00 mi1.00 mi21950+3088638+1548638+15416414(Top 58%)5944(Top 49%)5944(Top 109%)
35K21.75 mi0.75 mi21775+1758559+798559+7915733(Top 55%)5651(Top 46%)5651(Top 103%)
23M23.00 mi1.25 mi21385+3908370+1898370+18913960(Top 49%)4790(Top 39%)4790(Top 88%)
24M24.00 mi1.00 mi21090+2958242+1288242+12813091(Top 46%)4382(Top 36%)4382(Top 80%)
40K24.85 mi0.85 mi20861+2298122+1208122+12012488(Top 44%)4197(Top 34%)4197(Top 77%)
25.2M25.20 mi0.35 mi20752+1098074+488074+4812136(Top 43%)4077(Top 33%)4077(Top 75%)
Finish26.22 mi1.02 mi20597+1557995+797995+7914496(Top 51%)5219(Top 43%)5219(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22108

Females

8615

F18-39

8615

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21375

Females

8241

F18-39

8241

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22108

Females

8615

F18-39

8615

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22419

Females

8817

F18-39

8817

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23279

Females

9296

F18-39

9296

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23745

Females

9612

F18-39

9612

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22294

Females

8935

F18-39

8935

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19330

Females

7441

F18-39

7441

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16414

Females

5944

F18-39

5944

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15733

Females

5651

F18-39

5651

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13960

Females

4790

F18-39

4790

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

13091

Females

4382

F18-39

4382

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12488

Females

4197

F18-39

4197

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12136

Females

4077

F18-39

4077

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14496

Females

5219

F18-39

5219

Passing Analysis

Category:
Athletes Passed
2957
Passed By
1388
Net Change
+1569
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22166
5K → 10K493110+383#22166#21783
10K → 15K169268-99#21783#21882
15K → 20K146297-151#21882#22033
20K → Half1395-82#22033#22115
Half → 25K46460-414#22115#22529
25K → 30K211153+58#22529#22471
30K → 20M2141+213#22471#22258
20M → 21M3091+308#22258#21950
21M → 35K1761+175#21950#21775
35K → 23M3911+390#21775#21385
23M → 24M2961+295#21385#21090
24M → 40K2290+229#21090#20861
40K → 25.2M1090+109#20861#20752
25.2M → Finish1550+155#20752#20597
TOTALS29571388+1569
📊

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