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BOSTON MARATHON 2025

Nicole Koenen

Bib: 15997•F

TX

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 32%
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
7:37/mi
23:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
47:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:10:52
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:34:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:39:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:58:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:22:02
↑ 181↓ 1480.2%
20M
7:41/mi
2:32:29
↑ 64↓ 500.2%
21M
8:04/mi
2:40:33
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:46:05
↑ 17↓ 861.7%
23M
7:48/mi
2:55:51
↑ 23↓ 630.6%
24M
7:25/mi
3:03:16
↓ 821.3%
40K· 24.85 mi
7:28/mi
3:09:39
↓ 200.3%
25.2M
8:13/mi
3:12:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:02/mi
3:19:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:31
Pace7:35 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:08
Pace7:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3323:417:3723:41
7:37
-
10K
6.21 mi11:19:3447:427:4124:01
7:44
+0:07
15K
9.32 mi11:42:441:10:527:3623:10
7:27
-0:17
20K
12.43 mi12:06:151:34:237:3623:31
7:34
+0:07
Half
13.11 mi12:11:231:39:317:355:08
7:31
-0:03
25K
15.53 mi12:29:541:58:027:3618:31
7:38
+0:07
30K
18.64 mi12:53:542:22:027:3724:00
7:43
+0:05
20M
20.00 mi13:04:212:32:297:3710:27
7:41
-0:02
21M
21.00 mi13:12:252:40:337:398:04
8:04
+0:23
35K
21.75 mi13:17:572:46:057:385:32
7:24
-0:40
23M
23.00 mi13:27:432:55:517:399:46
7:48
+0:24
24M
24.00 mi13:35:083:03:167:387:25
7:25
-0:23
40K
24.85 mi13:41:313:09:397:386:23
7:28
+0:03
25.2M
25.20 mi13:44:213:12:297:382:50
8:13
+0:45
Finish
26.22 mi13:51:313:19:397:377:10
7:02
-1:11

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

7:02 /mi

Average Pace

7:37 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:59

90% of race

Time at Steady Pace

20:40

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi10:55:3323:417:3723:41
7:37
#13321
10K
6.21 mi11:19:3447:427:4124:01
7:44
#13723
15K
9.32 mi11:42:441:10:527:3623:10
7:27
#12895
20K
12.43 mi12:06:151:34:237:3623:31
7:34
#12448
Half
13.11 mi12:11:231:39:317:355:08
7:31
#12421
25K
15.53 mi12:29:541:58:027:3618:31
7:38
#12167
30K
18.64 mi12:53:542:22:027:3724:00
7:43
#11588
20M
20.00 mi13:04:212:32:297:3710:27
7:41
#11284
21M
21.00 mi13:12:252:40:337:398:04
8:04
#11036
35K
21.75 mi13:17:572:46:057:385:32
7:24
#10894
23M
23.00 mi13:27:432:55:517:399:46
7:48
#10705
24M
24.00 mi13:35:083:03:167:387:25
7:25
#10519
40K
24.85 mi13:41:313:09:397:386:23
7:28
#10317
25.2M
25.20 mi13:44:213:12:297:382:50
8:13
#10256
Finish
26.22 mi13:51:313:19:397:377:10
7:02
#10040
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133213499349911393(Top 40%)2576(Top 21%)2576(Top 47%)
10K6.21 mi3.10 mi13723-4023775-2763775-27614170(Top 50%)4058(Top 33%)4058(Top 74%)
15K9.32 mi3.11 mi12895+8283324+4513324+45111393(Top 40%)2576(Top 21%)2576(Top 47%)
20K12.43 mi3.11 mi12448+4473114+2103114+21011351(Top 40%)2655(Top 22%)2655(Top 49%)
Half13.11 mi0.68 mi12421+273103+113103+1111924(Top 42%)2874(Top 24%)2874(Top 53%)
25K15.53 mi2.42 mi12167+2543008+953008+9511042(Top 39%)2607(Top 21%)2607(Top 48%)
30K18.64 mi3.11 mi11588+5792776+2322776+2329377(Top 33%)1996(Top 16%)1996(Top 36%)
20M20.00 mi1.36 mi11284+3042658+1182658+1188316(Top 29%)1680(Top 14%)1680(Top 31%)
21M21.00 mi1.00 mi11036+2482559+992559+997789(Top 27%)1635(Top 13%)1635(Top 30%)
35K21.75 mi0.75 mi10894+1422518+412518+417956(Top 28%)1673(Top 14%)1673(Top 31%)
23M23.00 mi1.25 mi10705+1892464+542464+548613(Top 30%)2091(Top 17%)2091(Top 38%)
24M24.00 mi1.00 mi10519+1862395+692395+697183(Top 25%)1538(Top 13%)1538(Top 28%)
40K24.85 mi0.85 mi10317+2022332+632332+636650(Top 23%)1415(Top 12%)1415(Top 26%)
25.2M25.20 mi0.35 mi10256+612319+132319+137253(Top 26%)1769(Top 14%)1769(Top 32%)
Finish26.22 mi1.02 mi10040+2162241+782241+785994(Top 21%)1257(Top 10%)1257(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11393

Females

2576

F18-39

2576

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14170

Females

4058

F18-39

4058

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11393

Females

2576

F18-39

2576

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11351

Females

2655

F18-39

2655

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11924

Females

2874

F18-39

2874

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11042

Females

2607

F18-39

2607

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9377

Females

1996

F18-39

1996

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8316

Females

1680

F18-39

1680

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7789

Females

1635

F18-39

1635

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7956

Females

1673

F18-39

1673

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8613

Females

2091

F18-39

2091

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

7183

Females

1538

F18-39

1538

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6650

Females

1415

F18-39

1415

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7253

Females

1769

F18-39

1769

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5994

Females

1257

F18-39

1257

Passing Analysis

Category:
Athletes Passed
4013
Passed By
732
Net Change
+3281
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13321
5K → 10K146548-402#13321#13723
10K → 15K84315+828#13723#12895
15K → 20K47427+447#12895#12448
20K → Half4518+27#12448#12421
Half → 25K28935+254#12421#12167
25K → 30K59718+579#12167#11588
30K → 20M3117+304#11588#11284
20M → 21M26012+248#11284#11036
21M → 35K1475+142#11036#10894
35K → 23M21021+189#10894#10705
23M → 24M1926+186#10705#10519
24M → 40K2075+202#10519#10317
40K → 25.2M709+61#10317#10256
25.2M → Finish2226+216#10256#10040
TOTALS4013732+3281
📊

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