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BOSTON MARATHON 2025

Isabelle Gelinas

Bib: 20522•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
Gender (Female)
#0 / 12228
Top 35%
Masters (Masters Women)
#0 / 6759
Top 20%
Division (F40-44)
#0 / 1718
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:38
Rank: #16003
Start → 5K
24:38 | 7:56/mi
10K· 6.21 mi
49:14
Rank: #15897 (+106)
5K → 10K
24:36 | 7:55/mi
15K· 9.32 mi
1:14:01
Rank: #15854 (+43)
10K → 15K
24:47 | 7:59/mi
20K· 12.43 mi
1:39:00
Rank: #15687 (+167)
15K → 20K
24:59 | 8:02/mi
Half· 13.11 mi
1:44:24
Rank: #15658 (+29)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:04:01
Rank: #15416 (+242)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:29:55
Rank: #15077 (+339)
25K → 30K
25:54 | 8:20/mi
20M
2:41:16
Rank: #14853 (+224)
30K → 20M
11:21 | 8:21/mi
21M
2:50:09
Rank: #14690 (+163)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:56:18
Rank: #14624 (+66)
21M → 35K
6:09 | 8:13/mi
23M
3:06:34
Rank: #14410 (+214)
35K → 23M
10:16 | 8:12/mi
24M
3:14:37
Rank: #14265 (+145)
23M → 24M
8:03 | 8:03/mi
40K· 24.85 mi
3:21:31
Rank: #14102 (+163)
24M → 40K
6:54 | 8:04/mi
25.2M
3:24:35
Rank: #14039 (+63)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:32:24
Rank: #13867 (+172)
25.2M → Finish
7:49 | 7:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:24
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:48:00
Pace8:14 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3724:387:5624:38
7:56
-
10K
6.21 mi11:42:1349:147:5524:36
7:55
-0:01
15K
9.32 mi12:07:001:14:017:5624:47
7:59
+0:04
20K
12.43 mi12:31:591:39:007:5824:59
8:02
+0:03
Half
13.11 mi12:37:231:44:247:585:24
7:55
-0:07
25K
15.53 mi12:57:002:04:017:5919:37
8:05
+0:10
30K
18.64 mi13:22:542:29:558:0325:54
8:20
+0:15
20M
20.00 mi13:34:152:41:168:0411:21
8:21
+0:01
21M
21.00 mi13:43:082:50:098:068:53
8:53
+0:32
35K
21.75 mi13:49:172:56:188:066:09
8:13
-0:40
23M
23.00 mi13:59:333:06:348:0710:16
8:12
-0:01
24M
24.00 mi14:07:363:14:378:078:03
8:03
-0:09
40K
24.85 mi14:14:303:21:318:066:54
8:04
+0:01
25.2M
25.20 mi14:17:343:24:358:073:04
8:54
+0:50
Finish
26.22 mi14:25:233:32:248:067:49
7:40
-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

7:40 /mi

Average Pace

8:06 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:27

94% of race

Time at Steady Pace

11:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:17:3724:387:5624:38
7:56
#16003
10K
6.21 mi11:42:1349:147:5524:36
7:55
#15897
15K
9.32 mi12:07:001:14:017:5624:47
7:59
#15854
20K
12.43 mi12:31:591:39:007:5824:59
8:02
#15687
Half
13.11 mi12:37:231:44:247:585:24
7:55
#15658
25K
15.53 mi12:57:002:04:017:5919:37
8:05
#15416
30K
18.64 mi13:22:542:29:558:0325:54
8:20
#15077
20M
20.00 mi13:34:152:41:168:0411:21
8:21
#14853
21M
21.00 mi13:43:082:50:098:068:53
8:53
#14690
35K
21.75 mi13:49:172:56:188:066:09
8:13
#14624
23M
23.00 mi13:59:333:06:348:0710:16
8:12
#14410
24M
24.00 mi14:07:363:14:378:078:03
8:03
#14265
40K
24.85 mi14:14:303:21:318:066:54
8:04
#14102
25.2M
25.20 mi14:17:343:24:358:073:04
8:54
#14039
Finish
26.22 mi14:25:233:32:248:067:49
7:40
#13867
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi160035151515115871(Top 56%)5073(Top 41%)5073(Top 295%)
10K6.21 mi3.10 mi15897+1065073+785073+7815813(Top 56%)5018(Top 41%)5018(Top 292%)
15K9.32 mi3.11 mi15854+435047+265047+2615871(Top 56%)5073(Top 41%)5073(Top 295%)
20K12.43 mi3.11 mi15687+1674973+744973+7415225(Top 54%)4764(Top 39%)4764(Top 277%)
Half13.11 mi0.68 mi15658+294968+54968+515251(Top 54%)4748(Top 39%)4748(Top 276%)
25K15.53 mi2.42 mi15416+2424841+1274841+12714585(Top 51%)4529(Top 37%)4529(Top 264%)
30K18.64 mi3.11 mi15077+3394707+1344707+13413732(Top 48%)4217(Top 34%)4217(Top 245%)
20M20.00 mi1.36 mi14853+2244612+954612+9512880(Top 45%)3909(Top 32%)3909(Top 228%)
21M21.00 mi1.00 mi14690+1634547+654547+6512849(Top 45%)4046(Top 33%)4046(Top 236%)
35K21.75 mi0.75 mi14624+664520+274520+2713784(Top 49%)4564(Top 37%)4564(Top 266%)
23M23.00 mi1.25 mi14410+2144443+774443+7711391(Top 40%)3437(Top 28%)3437(Top 200%)
24M24.00 mi1.00 mi14265+1454390+534390+5311628(Top 41%)3643(Top 30%)3643(Top 212%)
40K24.85 mi0.85 mi14102+1634336+544336+5410715(Top 38%)3284(Top 27%)3284(Top 191%)
25.2M25.20 mi0.35 mi14039+634308+284308+2811282(Top 40%)3656(Top 30%)3656(Top 213%)
Finish26.22 mi1.02 mi13867+1724249+594249+5910526(Top 37%)3241(Top 27%)3241(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15871

Females

5073

F40-44

5073

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15813

Females

5018

F40-44

5018

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15871

Females

5073

F40-44

5073

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15225

Females

4764

F40-44

4764

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15251

Females

4748

F40-44

4748

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14585

Females

4529

F40-44

4529

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13732

Females

4217

F40-44

4217

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12880

Females

3909

F40-44

3909

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12849

Females

4046

F40-44

4046

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13784

Females

4564

F40-44

4564

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11391

Females

3437

F40-44

3437

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11628

Females

3643

F40-44

3643

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10715

Females

3284

F40-44

3284

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11282

Females

3656

F40-44

3656

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

10526

Females

3241

F40-44

3241

Passing Analysis

Category:
Athletes Passed
3000
Passed By
864
Net Change
+2136
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16003
5K → 10K376270+106#16003#15897
10K → 15K223180+43#15897#15854
15K → 20K284117+167#15854#15687
20K → Half4516+29#15687#15658
Half → 25K29856+242#15658#15416
25K → 30K41475+339#15416#15077
30K → 20M25329+224#15077#14853
20M → 21M19532+163#14853#14690
21M → 35K10539+66#14690#14624
35K → 23M22612+214#14624#14410
23M → 24M1538+145#14410#14265
24M → 40K1729+163#14265#14102
40K → 25.2M707+63#14102#14039
25.2M → Finish18614+172#14039#13867
TOTALS3000864+2136
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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