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BOSTON MARATHON 2025

Nora Sullivan

Bib: 26173•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
9:52/mi
30:40
↑ 97↓ 3451.5%
10K· 6.21 mi
9:25/mi
59:55
↑ 79↓ 1380.4%
15K· 9.32 mi
10:06/mi
1:31:19
↑ 67↓ 78
20K· 12.43 mi
10:09/mi
2:02:51
↑ 106↓ 860.1%
Half· 13.11 mi
9:49/mi
2:09:33
↑ 19↓ 370.5%
25K· 15.53 mi
9:49/mi
2:33:20
↑ 66↓ 880.2%
30K· 18.64 mi
10:20/mi
3:05:26
↑ 181↓ 1480.2%
20M
9:42/mi
3:18:37
↑ 64↓ 500.2%
21M
9:55/mi
3:28:32
↑ 106↓ 241.6%
35K· 21.75 mi
9:27/mi
3:35:36
↑ 17↓ 861.7%
23M
9:21/mi
3:47:19
↑ 23↓ 630.6%
24M
9:35/mi
3:56:54
↓ 821.3%
40K· 24.85 mi
9:31/mi
4:05:02
↓ 200.3%
25.2M
9:57/mi
4:08:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
4:17:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:09:33
Pace9:53 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:07:33
Pace9:44 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0830:409:5230:40
9:52
-
10K
6.21 mi12:15:2359:559:3929:15
9:25
-0:27
15K
9.32 mi12:46:471:31:199:4831:24
10:06
+0:41
20K
12.43 mi13:18:192:02:519:5331:32
10:09
+0:03
Half
13.11 mi13:25:012:09:339:536:42
9:49
-0:20
25K
15.53 mi13:48:482:33:209:5223:47
9:49
0:00
30K
18.64 mi14:20:543:05:269:5732:06
10:20
+0:31
20M
20.00 mi14:34:053:18:379:5613:11
9:42
-0:38
21M
21.00 mi14:44:003:28:329:569:55
9:55
+0:13
35K
21.75 mi14:51:043:35:369:557:04
9:27
-0:28
23M
23.00 mi15:02:473:47:199:5311:43
9:21
-0:06
24M
24.00 mi15:12:223:56:549:529:35
9:35
+0:14
40K
24.85 mi15:20:304:05:029:528:08
9:31
-0:04
25.2M
25.20 mi15:23:564:08:289:523:26
9:57
+0:26
Finish
26.22 mi15:32:344:17:069:498:38
8:28
-1:29

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

8:28 /mi

Average Pace

9:49 /mi

Slowest Pace

10:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:23

29% of race

Time at Steady Pace

1:27:41

34% of race

Time at Slower Pace

1:35:02

37% of race

Average Pace: 9:48 /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 mi11:46:0830:409:5230:40
9:52
#25271
10K
6.21 mi12:15:2359:559:3929:15
9:25
#24582
15K
9.32 mi12:46:471:31:199:4831:24
10:06
#24815
20K
12.43 mi13:18:192:02:519:5331:32
10:09
#24724
Half
13.11 mi13:25:012:09:339:536:42
9:49
#24707
25K
15.53 mi13:48:482:33:209:5223:47
9:49
#24428
30K
18.64 mi14:20:543:05:269:5732:06
10:20
#24096
20M
20.00 mi14:34:053:18:379:5613:11
9:42
#23823
21M
21.00 mi14:44:003:28:329:569:55
9:55
#23527
35K
21.75 mi14:51:043:35:369:557:04
9:27
#23385
23M
23.00 mi15:02:473:47:199:5311:43
9:21
#23150
24M
24.00 mi15:12:223:56:549:529:35
9:35
#23029
40K
24.85 mi15:20:304:05:029:528:08
9:31
#22857
25.2M
25.20 mi15:23:564:08:289:523:26
9:57
#22773
Finish
26.22 mi15:32:344:17:069:498:38
8:28
#22606
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25271103561035625218(Top 89%)10349(Top 85%)10349(Top 189%)
10K6.21 mi3.10 mi24582+6899992+3649992+36423874(Top 84%)9607(Top 79%)9607(Top 176%)
15K9.32 mi3.11 mi24815-23310122-13010122-13025218(Top 89%)10349(Top 85%)10349(Top 189%)
20K12.43 mi3.11 mi24724+9110084+3810084+3824530(Top 86%)10001(Top 82%)10001(Top 183%)
Half13.11 mi0.68 mi24707+1710073+1110073+1124432(Top 86%)9953(Top 81%)9953(Top 182%)
25K15.53 mi2.42 mi24428+2799942+1319942+13122794(Top 80%)9082(Top 74%)9082(Top 166%)
30K18.64 mi3.11 mi24096+3329778+1649778+16422552(Top 79%)9077(Top 74%)9077(Top 166%)
20M20.00 mi1.36 mi23823+2739656+1229656+12219967(Top 70%)7776(Top 64%)7776(Top 142%)
21M21.00 mi1.00 mi23527+2969513+1439513+14318014(Top 63%)6808(Top 56%)6808(Top 124%)
35K21.75 mi0.75 mi23385+1429451+629451+6220180(Top 71%)8083(Top 66%)8083(Top 148%)
23M23.00 mi1.25 mi23150+2359352+999352+9918083(Top 64%)7032(Top 58%)7032(Top 129%)
24M24.00 mi1.00 mi23029+1219305+479305+4719952(Top 70%)8063(Top 66%)8063(Top 147%)
40K24.85 mi0.85 mi22857+1729230+759230+7518803(Top 66%)7541(Top 62%)7541(Top 138%)
25.2M25.20 mi0.35 mi22773+849188+429188+4216930(Top 60%)6584(Top 54%)6584(Top 120%)
Finish26.22 mi1.02 mi22606+1679119+699119+6916092(Top 57%)6087(Top 50%)6087(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25218

Females

10349

F18-39

10349

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23874

Females

9607

F18-39

9607

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25218

Females

10349

F18-39

10349

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24530

Females

10001

F18-39

10001

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24432

Females

9953

F18-39

9953

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22794

Females

9082

F18-39

9082

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22552

Females

9077

F18-39

9077

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19967

Females

7776

F18-39

7776

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

18014

Females

6808

F18-39

6808

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20180

Females

8083

F18-39

8083

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18083

Females

7032

F18-39

7032

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19952

Females

8063

F18-39

8063

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18803

Females

7541

F18-39

7541

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16930

Females

6584

F18-39

6584

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16092

Females

6087

F18-39

6087

Passing Analysis

Category:
Athletes Passed
3142
Passed By
477
Net Change
+2665
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25271
5K → 10K70617+689#25271#24582
10K → 15K66299-233#24582#24815
15K → 20K18594+91#24815#24724
20K → Half3417+17#24724#24707
Half → 25K2834+279#24707#24428
25K → 30K36230+332#24428#24096
30K → 20M2741+273#24096#23823
20M → 21M2960+296#23823#23527
21M → 35K1475+142#23527#23385
35K → 23M2361+235#23385#23150
23M → 24M1287+121#23150#23029
24M → 40K1742+172#23029#22857
40K → 25.2M840+84#22857#22773
25.2M → Finish1670+167#22773#22606
TOTALS3142477+2665
📊

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