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BOSTON MARATHON 2025

Noreen Guilfoyle

Bib: 10363•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 45%
Gender (Female)
#0 / 12228
Top 30%
Division (F18-39)
#0 / 5469
Top 48%
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
6:57/mi
21:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:05/mi
43:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:05:43
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:28:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:33:39
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:52:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:15/mi
2:17:53
↑ 181↓ 1480.2%
20M
9:12/mi
2:30:23
↑ 64↓ 500.2%
21M
10:22/mi
2:40:45
↑ 106↓ 241.6%
35K· 21.75 mi
9:04/mi
2:47:32
↑ 17↓ 861.7%
23M
9:33/mi
2:59:29
↑ 23↓ 630.6%
24M
9:16/mi
3:08:45
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:16:30
↓ 200.3%
25.2M
9:46/mi
3:19:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:32/mi
3:28:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:39
Pace7:09 /mi
2nd Half
Distance13.11 mi
Time1:54:55
Pace8:46 /mi
📊Positive Split: 22.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1721:356:5721:35
6:57
-
10K
6.21 mi11:09:1643:347:0121:59
7:05
+0:08
15K
9.32 mi11:31:251:05:437:0322:09
7:08
+0:03
20K
12.43 mi11:54:261:28:447:0823:01
7:25
+0:17
Half
13.11 mi11:59:211:33:397:094:55
7:12
-0:13
25K
15.53 mi12:17:571:52:157:1418:36
7:40
+0:28
30K
18.64 mi12:43:352:17:537:2425:38
8:15
+0:35
20M
20.00 mi12:56:052:30:237:3112:30
9:12
+0:57
21M
21.00 mi13:06:272:40:457:3910:22
10:22
+1:10
35K
21.75 mi13:13:142:47:327:426:47
9:04
-1:18
23M
23.00 mi13:25:112:59:297:4811:57
9:33
+0:29
24M
24.00 mi13:34:273:08:457:529:16
9:16
-0:17
40K
24.85 mi13:42:123:16:307:547:45
9:04
-0:12
25.2M
25.20 mi13:45:343:19:527:563:22
9:46
+0:42
Finish
26.22 mi13:54:163:28:347:588:42
8:32
-1:14

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

6:57 /mi

Average Pace

7:58 /mi

Slowest Pace

10:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:15

54% of race

Time at Steady Pace

48:52

23% of race

Time at Slower Pace

47:27

23% of race

Average Pace: 7:57 /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 mi10:47:1721:356:5721:35
6:57
#7429
10K
6.21 mi11:09:1643:347:0121:59
7:05
#7943
15K
9.32 mi11:31:251:05:437:0322:09
7:08
#8127
20K
12.43 mi11:54:261:28:447:0823:01
7:25
#8468
Half
13.11 mi11:59:211:33:397:094:55
7:12
#8493
25K
15.53 mi12:17:571:52:157:1418:36
7:40
#8926
30K
18.64 mi12:43:352:17:537:2425:38
8:15
#9684
20M
20.00 mi12:56:052:30:237:3112:30
9:12
#10420
21M
21.00 mi13:06:272:40:457:3910:22
10:22
#11107
35K
21.75 mi13:13:142:47:327:426:47
9:04
#11432
23M
23.00 mi13:25:112:59:297:4811:57
9:33
#11997
24M
24.00 mi13:34:273:08:457:529:16
9:16
#12358
40K
24.85 mi13:42:123:16:307:547:45
9:04
#12535
25.2M
25.20 mi13:45:343:19:527:563:22
9:46
#12609
Finish
26.22 mi13:54:163:28:347:588:42
8:32
#12778
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi74298008008562(Top 30%)1258(Top 10%)1258(Top 23%)
10K6.21 mi3.10 mi7943-514979-179979-1798490(Top 30%)1183(Top 10%)1183(Top 22%)
15K9.32 mi3.11 mi8127-1841057-781057-788562(Top 30%)1258(Top 10%)1258(Top 23%)
20K12.43 mi3.11 mi8468-3411212-1551212-1559988(Top 35%)1961(Top 16%)1961(Top 36%)
Half13.11 mi0.68 mi8493-251221-91221-99241(Top 33%)1626(Top 13%)1626(Top 30%)
25K15.53 mi2.42 mi8926-4331415-1941415-19411346(Top 40%)2774(Top 23%)2774(Top 51%)
30K18.64 mi3.11 mi9684-7581816-4011816-40113175(Top 46%)3932(Top 32%)3932(Top 72%)
20M20.00 mi1.36 mi10420-7362207-3912207-39117776(Top 63%)6574(Top 54%)6574(Top 120%)
21M21.00 mi1.00 mi11107-6872605-3982605-39819601(Top 69%)7678(Top 63%)7678(Top 140%)
35K21.75 mi0.75 mi11432-3252806-2012806-20118572(Top 65%)7226(Top 59%)7226(Top 132%)
23M23.00 mi1.25 mi11997-5653132-3263132-32618883(Top 66%)7448(Top 61%)7448(Top 136%)
24M24.00 mi1.00 mi12358-3613357-2253357-22518672(Top 66%)7367(Top 60%)7367(Top 135%)
40K24.85 mi0.85 mi12535-1773470-1133470-11316691(Top 59%)6409(Top 52%)6409(Top 117%)
25.2M25.20 mi0.35 mi12609-743528-583528-5815926(Top 56%)6031(Top 49%)6031(Top 110%)
Finish26.22 mi1.02 mi12778-1693639-1113639-11116457(Top 58%)6267(Top 51%)6267(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8562

Females

1258

F18-39

1258

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8490

Females

1183

F18-39

1183

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8562

Females

1258

F18-39

1258

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9988

Females

1961

F18-39

1961

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9241

Females

1626

F18-39

1626

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11346

Females

2774

F18-39

2774

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

13175

Females

3932

F18-39

3932

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17776

Females

6574

F18-39

6574

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19601

Females

7678

F18-39

7678

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18572

Females

7226

F18-39

7226

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18883

Females

7448

F18-39

7448

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18672

Females

7367

F18-39

7367

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16691

Females

6409

F18-39

6409

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15926

Females

6031

F18-39

6031

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16457

Females

6267

F18-39

6267

Passing Analysis

Category:
Athletes Passed
554
Passed By
5901
Net Change
-5349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7429
5K → 10K63577-514#7429#7943
10K → 15K89273-184#7943#8127
15K → 20K79420-341#8127#8468
20K → Half2348-25#8468#8493
Half → 25K59492-433#8493#8926
25K → 30K67825-758#8926#9684
30K → 20M22756-736#9684#10420
20M → 21M10697-687#10420#11107
21M → 35K11336-325#11107#11432
35K → 23M32597-565#11432#11997
23M → 24M18379-361#11997#12358
24M → 40K32209-177#12358#12535
40K → 25.2M2195-74#12535#12609
25.2M → Finish28197-169#12609#12778
TOTALS5545901-5349
📊

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