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BOSTON MARATHON 2025

Isabelle Fournier

Bib: 28006•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

Start
0:00:00
Race begins
5K· 3.11 mi
30:41
Rank: #25284
Start → 5K
30:41 | 9:53/mi
10K· 6.21 mi
59:33
Rank: #24412 (+872)
5K → 10K
28:52 | 9:17/mi
15K· 9.32 mi
1:26:48
Rank: #23485 (+927)
10K → 15K
27:15 | 8:46/mi
20K· 12.43 mi
1:54:08
Rank: #22714 (+771)
15K → 20K
27:20 | 8:48/mi
Half· 13.11 mi
2:00:09
Rank: #22631 (+83)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:22:46
Rank: #22402 (+229)
Half → 25K
22:37 | 9:20/mi
30K· 18.64 mi
2:53:26
Rank: #22172 (+230)
25K → 30K
30:40 | 9:52/mi
20M
3:07:33
Rank: #22176 (-4)
30K → 20M
14:07 | 10:23/mi
21M
3:18:17
Rank: #22057 (+119)
20M → 21M
10:44 | 10:44/mi
35K· 21.75 mi
3:25:02
Rank: #21926 (+131)
21M → 35K
6:45 | 9:01/mi
23M
3:37:16
Rank: #21782 (+144)
35K → 23M
12:14 | 9:46/mi
24M
3:46:59
Rank: #21731 (+51)
23M → 24M
9:43 | 9:43/mi
40K· 24.85 mi
3:55:26
Rank: #21649 (+82)
24M → 40K
8:27 | 9:53/mi
25.2M
3:59:12
Rank: #21616 (+33)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
4:08:49
Rank: #21592 (+24)
25.2M → Finish
9:37 | 9:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:09
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:08:40
Pace9:49 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5330:419:5330:41
9:53
-
10K
6.21 mi12:20:4559:339:3528:52
9:17
-0:36
15K
9.32 mi12:48:001:26:489:1927:15
8:46
-0:31
20K
12.43 mi13:15:201:54:089:1127:20
8:48
+0:02
Half
13.11 mi13:21:212:00:099:106:01
8:49
+0:01
25K
15.53 mi13:43:582:22:469:1122:37
9:20
+0:31
30K
18.64 mi14:14:382:53:269:1830:40
9:52
+0:32
20M
20.00 mi14:28:453:07:339:2314:07
10:23
+0:31
21M
21.00 mi14:39:293:18:179:2710:44
10:44
+0:21
35K
21.75 mi14:46:143:25:029:266:45
9:01
-1:43
23M
23.00 mi14:58:283:37:169:2712:14
9:46
+0:45
24M
24.00 mi15:08:113:46:599:279:43
9:43
-0:03
40K
24.85 mi15:16:383:55:269:288:27
9:53
+0:10
25.2M
25.20 mi15:20:243:59:129:303:46
10:55
+1:02
Finish
26.22 mi15:30:014:08:499:309:37
9:26
-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

8:46 /mi

Average Pace

9:30 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:50

48% of race

Time at Steady Pace

1:41:22

41% of race

Time at Slower Pace

28:37

12% of race

Average Pace: 9:29 /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 mi11:51:5330:419:5330:41
9:53
#25284
10K
6.21 mi12:20:4559:339:3528:52
9:17
#24412
15K
9.32 mi12:48:001:26:489:1927:15
8:46
#23485
20K
12.43 mi13:15:201:54:089:1127:20
8:48
#22714
Half
13.11 mi13:21:212:00:099:106:01
8:49
#22631
25K
15.53 mi13:43:582:22:469:1122:37
9:20
#22402
30K
18.64 mi14:14:382:53:269:1830:40
9:52
#22172
20M
20.00 mi14:28:453:07:339:2314:07
10:23
#22176
21M
21.00 mi14:39:293:18:179:2710:44
10:44
#22057
35K
21.75 mi14:46:143:25:029:266:45
9:01
#21926
23M
23.00 mi14:58:283:37:169:2712:14
9:46
#21782
24M
24.00 mi15:08:113:46:599:279:43
9:43
#21731
40K
24.85 mi15:16:383:55:269:288:27
9:53
#21649
25.2M
25.20 mi15:20:243:59:129:303:46
10:55
#21616
Finish
26.22 mi15:30:014:08:499:309:37
9:26
#21592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25284103631036320892(Top 74%)7941(Top 65%)7941(Top 145%)
10K6.21 mi3.10 mi24412+8729901+4629901+46223497(Top 83%)9408(Top 77%)9408(Top 172%)
15K9.32 mi3.11 mi23485+9279405+4969405+49620892(Top 74%)7941(Top 65%)7941(Top 145%)
20K12.43 mi3.11 mi22714+7718959+4468959+44619937(Top 70%)7448(Top 61%)7448(Top 136%)
Half13.11 mi0.68 mi22631+838917+428917+4221048(Top 74%)8081(Top 66%)8081(Top 148%)
25K15.53 mi2.42 mi22402+2298814+1038814+10321304(Top 75%)8264(Top 68%)8264(Top 151%)
30K18.64 mi3.11 mi22172+2308716+988716+9821225(Top 75%)8356(Top 68%)8356(Top 153%)
20M20.00 mi1.36 mi22176-48738-228738-2222119(Top 78%)8963(Top 73%)8963(Top 164%)
21M21.00 mi1.00 mi22057+1198696+428696+4220694(Top 73%)8293(Top 68%)8293(Top 152%)
35K21.75 mi0.75 mi21926+1318640+568640+5618399(Top 65%)7142(Top 58%)7142(Top 131%)
23M23.00 mi1.25 mi21782+1448594+468594+4619706(Top 69%)7895(Top 65%)7895(Top 144%)
24M24.00 mi1.00 mi21731+518588+68588+620458(Top 72%)8332(Top 68%)8332(Top 152%)
40K24.85 mi0.85 mi21649+828567+218567+2120092(Top 71%)8210(Top 67%)8210(Top 150%)
25.2M25.20 mi0.35 mi21616+338553+148553+1420432(Top 72%)8380(Top 69%)8380(Top 153%)
Finish26.22 mi1.02 mi21592+248553855320976(Top 74%)8647(Top 71%)8647(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

20892

Females

7941

F18-39

7941

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23497

Females

9408

F18-39

9408

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

20892

Females

7941

F18-39

7941

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19937

Females

7448

F18-39

7448

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

21048

Females

8081

F18-39

8081

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

21304

Females

8264

F18-39

8264

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

21225

Females

8356

F18-39

8356

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22119

Females

8963

F18-39

8963

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20694

Females

8293

F18-39

8293

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

18399

Females

7142

F18-39

7142

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19706

Females

7895

F18-39

7895

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20458

Females

8332

F18-39

8332

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20092

Females

8210

F18-39

8210

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20432

Females

8380

F18-39

8380

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

20976

Females

8647

F18-39

8647

Passing Analysis

Category:
Athletes Passed
4024
Passed By
332
Net Change
+3692
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25284
5K → 10K8797+872#25284#24412
10K → 15K9292+927#24412#23485
15K → 20K7710+771#23485#22714
20K → Half918+83#22714#22631
Half → 25K26334+229#22631#22402
25K → 30K30171+230#22402#22172
30K → 20M8185-4#22172#22176
20M → 21M14122+119#22176#22057
21M → 35K1321+131#22057#21926
35K → 23M16319+144#21926#21782
23M → 24M7322+51#21782#21731
24M → 40K10321+82#21731#21649
40K → 25.2M407+33#21649#21616
25.2M → Finish5733+24#21616#21592
TOTALS4024332+3692
📊

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