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BOSTON MARATHON 2025

Nicole Bradbury

Bib: 17940•F

AR

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
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
7:37/mi
23:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
47:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:31/mi
1:10:22
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:34:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:39:29
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
1:59:00
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:25:48
↑ 181↓ 1480.2%
20M
8:48/mi
2:37:46
↑ 64↓ 500.2%
21M
10:15/mi
2:48:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
2:54:31
↑ 17↓ 861.7%
23M
9:45/mi
3:06:43
↑ 23↓ 630.6%
24M
9:52/mi
3:16:35
↓ 821.3%
40K· 24.85 mi
9:54/mi
3:25:03
↓ 200.3%
25.2M
10:38/mi
3:28:43
↑ 13↓ 160.2%
Finish· 26.22 mi
9:39/mi
3:38:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:29
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:59:04
Pace9:05 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0423:417:3723:41
7:37
-
10K
6.21 mi11:37:2347:007:3423:19
7:30
-0:07
15K
9.32 mi12:00:451:10:227:3323:22
7:31
+0:01
20K
12.43 mi12:24:361:34:137:3523:51
7:41
+0:10
Half
13.11 mi12:29:521:39:297:355:16
7:43
+0:02
25K
15.53 mi12:49:231:59:007:4019:31
8:03
+0:20
30K
18.64 mi13:16:112:25:487:4926:48
8:38
+0:35
20M
20.00 mi13:28:092:37:467:5311:58
8:48
+0:10
21M
21.00 mi13:38:242:48:018:0010:15
10:15
+1:27
35K
21.75 mi13:44:542:54:318:016:30
8:41
-1:34
23M
23.00 mi13:57:063:06:438:0712:12
9:45
+1:04
24M
24.00 mi14:06:583:16:358:119:52
9:52
+0:07
40K
24.85 mi14:15:263:25:038:158:28
9:54
+0:02
25.2M
25.20 mi14:19:063:28:438:173:40
10:38
+0:44
Finish
26.22 mi14:28:563:38:338:209:50
9:39
-0:59

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

7:30 /mi

Average Pace

8:20 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:00

54% of race

Time at Steady Pace

45:16

21% of race

Time at Slower Pace

54:17

25% of race

Average Pace: 8:20 /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 mi11:14:0423:417:3723:41
7:37
#13335
10K
6.21 mi11:37:2347:007:3423:19
7:30
#12704
15K
9.32 mi12:00:451:10:227:3323:22
7:31
#12434
20K
12.43 mi12:24:361:34:137:3523:51
7:41
#12332
Half
13.11 mi12:29:521:39:297:355:16
7:43
#12397
25K
15.53 mi12:49:231:59:007:4019:31
8:03
#12694
30K
18.64 mi13:16:112:25:487:4926:48
8:38
#13272
20M
20.00 mi13:28:092:37:467:5311:58
8:48
#13438
21M
21.00 mi13:38:242:48:018:0010:15
10:15
#13866
35K
21.75 mi13:44:542:54:318:016:30
8:41
#13967
23M
23.00 mi13:57:063:06:438:0712:12
9:45
#14452
24M
24.00 mi14:06:583:16:358:119:52
9:52
#14823
40K
24.85 mi14:15:263:25:038:158:28
9:54
#15115
25.2M
25.20 mi14:19:063:28:438:173:40
10:38
#15202
Finish
26.22 mi14:28:563:38:338:209:50
9:39
#15503
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133353513351311973(Top 42%)2891(Top 24%)2891(Top 53%)
10K6.21 mi3.10 mi12704+6313181+3323181+33212166(Top 43%)2910(Top 24%)2910(Top 53%)
15K9.32 mi3.11 mi12434+2703072+1093072+10911973(Top 42%)2891(Top 24%)2891(Top 53%)
20K12.43 mi3.11 mi12332+1023050+223050+2212221(Top 43%)3126(Top 26%)3126(Top 57%)
Half13.11 mi0.68 mi12397-653095-453095-4513677(Top 48%)3899(Top 32%)3899(Top 71%)
25K15.53 mi2.42 mi12694-2973300-2053300-20514294(Top 50%)4370(Top 36%)4370(Top 80%)
30K18.64 mi3.11 mi13272-5783702-4023702-40215537(Top 55%)5196(Top 42%)5196(Top 95%)
20M20.00 mi1.36 mi13438-1663822-1203822-12015707(Top 55%)5420(Top 44%)5420(Top 99%)
21M21.00 mi1.00 mi13866-4284095-2734095-27319193(Top 68%)7428(Top 61%)7428(Top 136%)
35K21.75 mi0.75 mi13967-1014171-764171-7616625(Top 59%)6121(Top 50%)6121(Top 112%)
23M23.00 mi1.25 mi14452-4854461-2904461-29019601(Top 69%)7829(Top 64%)7829(Top 143%)
24M24.00 mi1.00 mi14823-3714698-2374698-23720956(Top 74%)8574(Top 70%)8574(Top 157%)
40K24.85 mi0.85 mi15115-2924906-2084906-20820135(Top 71%)8223(Top 67%)8223(Top 150%)
25.2M25.20 mi0.35 mi15202-874971-654971-6519495(Top 69%)7882(Top 64%)7882(Top 144%)
Finish26.22 mi1.02 mi15503-3015152-1815152-18121727(Top 76%)9020(Top 74%)9020(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11973

Females

2891

F18-39

2891

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12166

Females

2910

F18-39

2910

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11973

Females

2891

F18-39

2891

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12221

Females

3126

F18-39

3126

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13677

Females

3899

F18-39

3899

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14294

Females

4370

F18-39

4370

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15537

Females

5196

F18-39

5196

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15707

Females

5420

F18-39

5420

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19193

Females

7428

F18-39

7428

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16625

Females

6121

F18-39

6121

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19601

Females

7829

F18-39

7829

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

20956

Females

8574

F18-39

8574

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20135

Females

8223

F18-39

8223

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19495

Females

7882

F18-39

7882

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21727

Females

9020

F18-39

9020

Passing Analysis

Category:
Athletes Passed
1742
Passed By
3910
Net Change
-2168
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13335
5K → 10K71483+631#13335#12704
10K → 15K35282+270#12704#12434
15K → 20K237135+102#12434#12332
20K → Half1479-65#12332#12397
Half → 25K87384-297#12397#12694
25K → 30K109687-578#12694#13272
30K → 20M73239-166#13272#13438
20M → 21M31459-428#13438#13866
21M → 35K40141-101#13866#13967
35K → 23M29514-485#13967#14452
23M → 24M13384-371#14452#14823
24M → 40K20312-292#14823#15115
40K → 25.2M15102-87#15115#15202
25.2M → Finish8309-301#15202#15503
TOTALS17423910-2168
📊

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