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BOSTON MARATHON 2025

Gudbjorg Fridbjornsdottir

Bib: 23234•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
8:28/mi
26:17
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
52:35
↑ 79↓ 1380.4%
15K· 9.32 mi
9:15/mi
1:21:20
↑ 67↓ 78
20K· 12.43 mi
10:19/mi
1:53:22
↑ 106↓ 860.1%
Half· 13.11 mi
11:10/mi
2:00:59
↑ 19↓ 370.5%
25K· 15.53 mi
11:47/mi
2:29:33
↑ 66↓ 880.2%
30K· 18.64 mi
12:14/mi
3:07:33
↑ 181↓ 1480.2%
20M
13:37/mi
3:26:03
↑ 64↓ 500.2%
21M
12:37/mi
3:38:40
↑ 106↓ 241.6%
35K· 21.75 mi
12:15/mi
3:47:50
↑ 17↓ 861.7%
23M
13:12/mi
4:04:22
↑ 23↓ 630.6%
24M
13:16/mi
4:17:38
↓ 821.3%
40K· 24.85 mi
12:11/mi
4:28:03
↓ 200.3%
25.2M
12:31/mi
4:32:22
↑ 13↓ 160.2%
Finish· 26.22 mi
9:44/mi
4:42:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:59
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:41:18
Pace12:18 /mi
📊Positive Split: 33.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:0326:178:2826:17
8:28
-
10K
6.21 mi11:49:2152:358:2826:18
8:28
0:00
15K
9.32 mi12:18:061:21:208:4428:45
9:15
+0:47
20K
12.43 mi12:50:081:53:229:0732:02
10:19
+1:04
Half
13.11 mi12:57:452:00:599:147:37
11:10
+0:51
25K
15.53 mi13:26:192:29:339:3828:34
11:47
+0:37
30K
18.64 mi14:04:193:07:3310:0438:00
12:14
+0:27
20M
20.00 mi14:22:493:26:0310:1818:30
13:37
+1:23
21M
21.00 mi14:35:263:38:4010:2512:37
12:37
-1:00
35K
21.75 mi14:44:363:47:5010:299:10
12:15
-0:22
23M
23.00 mi15:01:084:04:2210:3716:32
13:12
+0:57
24M
24.00 mi15:14:244:17:3810:4413:16
13:16
+0:04
40K
24.85 mi15:24:494:28:0310:4710:25
12:11
-1:05
25.2M
25.20 mi15:29:084:32:2210:484:19
12:31
+0:20
Finish
26.22 mi15:39:034:42:1710:469:55
9:44
-2:47

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

10:46 /mi

Slowest Pace

13:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:54

46% of race

Time at Steady Pace

1:43:05

37% of race

Time at Slower Pace

48:18

17% of race

Average Pace: 10:46 /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 mi11:23:0326:178:2826:17
8:28
#19639
10K
6.21 mi11:49:2152:358:2826:18
8:28
#19600
15K
9.32 mi12:18:061:21:208:4428:45
9:15
#20883
20K
12.43 mi12:50:081:53:229:0732:02
10:19
#22452
Half
13.11 mi12:57:452:00:599:147:37
11:10
#22883
25K
15.53 mi13:26:192:29:339:3828:34
11:47
#23761
30K
18.64 mi14:04:193:07:3310:0438:00
12:14
#24370
20M
20.00 mi14:22:493:26:0310:1818:30
13:37
#24684
21M
21.00 mi14:35:263:38:4010:2512:37
12:37
#24697
35K
21.75 mi14:44:363:47:5010:299:10
12:15
#24757
23M
23.00 mi15:01:084:04:2210:3716:32
13:12
#24925
24M
24.00 mi15:14:244:17:3810:4413:16
13:16
#25065
40K
24.85 mi15:24:494:28:0310:4710:25
12:11
#25087
25.2M
25.20 mi15:29:084:32:2210:484:19
12:31
#25066
Finish
26.22 mi15:39:034:42:1710:469:55
9:44
#25013
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi196397286728623045(Top 81%)9120(Top 75%)9120(Top 918%)
10K6.21 mi3.10 mi19600+397244+427244+4219591(Top 69%)7233(Top 59%)7233(Top 728%)
15K9.32 mi3.11 mi20883-12837978-7347978-73423045(Top 81%)9120(Top 75%)9120(Top 918%)
20K12.43 mi3.11 mi22452-15698838-8608838-86024841(Top 87%)10176(Top 83%)10176(Top 1024%)
Half13.11 mi0.68 mi22883-4319061-2239061-22326708(Top 94%)11240(Top 92%)11240(Top 1131%)
25K15.53 mi2.42 mi23761-8789562-5019562-50126187(Top 92%)10965(Top 90%)10965(Top 1103%)
30K18.64 mi3.11 mi24370-6099932-3709932-37025858(Top 91%)10871(Top 89%)10871(Top 1094%)
20M20.00 mi1.36 mi24684-31410122-19010122-19026995(Top 95%)11556(Top 95%)11556(Top 1163%)
21M21.00 mi1.00 mi24697-1310139-1710139-1724535(Top 86%)10310(Top 84%)10310(Top 1037%)
35K21.75 mi0.75 mi24757-6010177-3810177-3826175(Top 92%)11178(Top 91%)11178(Top 1125%)
23M23.00 mi1.25 mi24925-16810290-11310290-11326613(Top 94%)11407(Top 93%)11407(Top 1148%)
24M24.00 mi1.00 mi25065-14010373-8310373-8327107(Top 95%)11698(Top 96%)11698(Top 1177%)
40K24.85 mi0.85 mi25087-2210393-2010393-2025192(Top 89%)10763(Top 88%)10763(Top 1083%)
25.2M25.20 mi0.35 mi25066+2110386+710386+724168(Top 85%)10260(Top 84%)10260(Top 1032%)
Finish26.22 mi1.02 mi25013+5310363+2310363+2322000(Top 77%)9162(Top 75%)9162(Top 922%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

23045

Females

9120

F55-59

9120

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19591

Females

7233

F55-59

7233

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

23045

Females

9120

F55-59

9120

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24841

Females

10176

F55-59

10176

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

26708

Females

11240

F55-59

11240

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26187

Females

10965

F55-59

10965

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

25858

Females

10871

F55-59

10871

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

26995

Females

11556

F55-59

11556

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24535

Females

10310

F55-59

10310

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26175

Females

11178

F55-59

11178

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

26613

Females

11407

F55-59

11407

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

27107

Females

11698

F55-59

11698

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25192

Females

10763

F55-59

10763

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24168

Females

10260

F55-59

10260

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

22000

Females

9162

F55-59

9162

Passing Analysis

Category:
Athletes Passed
562
Passed By
5936
Net Change
-5374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19639
5K → 10K273234+39#19639#19600
10K → 15K331316-1283#19600#20883
15K → 20K131582-1569#20883#22452
20K → Half2433-431#22452#22883
Half → 25K12890-878#22883#23761
25K → 30K26635-609#23761#24370
30K → 20M11325-314#24370#24684
20M → 21M4962-13#24684#24697
21M → 35K1272-60#24697#24757
35K → 23M11179-168#24757#24925
23M → 24M10150-140#24925#25065
24M → 40K2446-22#25065#25087
40K → 25.2M287+21#25087#25066
25.2M → Finish585+53#25066#25013
TOTALS5625936-5374
📊

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