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BOSTON MARATHON 2025

Michelle Bollini

Bib: 14885•F

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 27%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 19%
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
7:02/mi
21:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:02/mi
43:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:17/mi
1:06:19
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:29:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:01/mi
1:34:13
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:52:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:15:47
↑ 181↓ 1480.2%
20M
7:38/mi
2:26:10
↑ 64↓ 500.2%
21M
8:02/mi
2:34:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:16/mi
2:39:38
↑ 17↓ 861.7%
23M
7:24/mi
2:48:54
↑ 23↓ 630.6%
24M
7:18/mi
2:56:12
↓ 821.3%
40K· 24.85 mi
7:24/mi
3:02:32
↓ 200.3%
25.2M
8:01/mi
3:05:18
↑ 13↓ 160.2%
Finish· 26.22 mi
6:55/mi
3:12:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:13
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3021:507:0221:50
7:02
-
10K
6.21 mi11:14:2243:427:0221:52
7:02
0:00
15K
9.32 mi11:36:591:06:197:0722:37
7:17
+0:15
20K
12.43 mi12:00:061:29:267:1223:07
7:26
+0:09
Half
13.11 mi12:04:531:34:137:114:47
7:01
-0:25
25K
15.53 mi12:22:421:52:027:1317:49
7:21
+0:20
30K
18.64 mi12:46:272:15:477:1723:45
7:39
+0:18
20M
20.00 mi12:56:502:26:107:1810:23
7:38
-0:01
21M
21.00 mi13:04:522:34:127:218:02
8:02
+0:24
35K
21.75 mi13:10:182:39:387:205:26
7:16
-0:46
23M
23.00 mi13:19:342:48:547:219:16
7:24
+0:08
24M
24.00 mi13:26:522:56:127:217:18
7:18
-0:06
40K
24.85 mi13:33:123:02:327:216:20
7:24
+0:06
25.2M
25.20 mi13:35:583:05:187:212:46
8:01
+0:37
Finish
26.22 mi13:43:013:12:217:207:03
6:55
-1:06

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

6:55 /mi

Average Pace

7:20 /mi

Slowest Pace

8:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:25

77% of race

Time at Steady Pace

44:56

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:20 /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 mi10:52:3021:507:0221:50
7:02
#8049
10K
6.21 mi11:14:2243:427:0221:52
7:02
#8121
15K
9.32 mi11:36:591:06:197:0722:37
7:17
#8620
20K
12.43 mi12:00:061:29:267:1223:07
7:26
#8952
Half
13.11 mi12:04:531:34:137:114:47
7:01
#8859
25K
15.53 mi12:22:421:52:027:1317:49
7:21
#8781
30K
18.64 mi12:46:272:15:477:1723:45
7:39
#8695
20M
20.00 mi12:56:502:26:107:1810:23
7:38
#8596
21M
21.00 mi13:04:522:34:127:218:02
8:02
#8481
35K
21.75 mi13:10:182:39:387:205:26
7:16
#8396
23M
23.00 mi13:19:342:48:547:219:16
7:24
#8170
24M
24.00 mi13:26:522:56:127:217:18
7:18
#8038
40K
24.85 mi13:33:123:02:327:216:20
7:24
#7935
25.2M
25.20 mi13:35:583:05:187:212:46
8:01
#7867
Finish
26.22 mi13:43:013:12:217:207:03
6:55
#7711
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi80499999999835(Top 35%)1812(Top 15%)1812(Top 33%)
10K6.21 mi3.10 mi8121-721041-421041-428221(Top 29%)1082(Top 9%)1082(Top 20%)
15K9.32 mi3.11 mi8620-4991243-2021243-2029835(Top 35%)1812(Top 15%)1812(Top 33%)
20K12.43 mi3.11 mi8952-3321397-1541397-15410253(Top 36%)2080(Top 17%)2080(Top 38%)
Half13.11 mi0.68 mi8859+931366+311366+317734(Top 27%)995(Top 8%)995(Top 18%)
25K15.53 mi2.42 mi8781+781351+151351+158730(Top 31%)1514(Top 12%)1514(Top 28%)
30K18.64 mi3.11 mi8695+861369-181369-188791(Top 31%)1738(Top 14%)1738(Top 32%)
20M20.00 mi1.36 mi8596+991377-81377-87992(Top 28%)1535(Top 13%)1535(Top 28%)
21M21.00 mi1.00 mi8481+1151360+171360+177550(Top 27%)1530(Top 13%)1530(Top 28%)
35K21.75 mi0.75 mi8396+851350+101350+107022(Top 25%)1295(Top 11%)1295(Top 24%)
23M23.00 mi1.25 mi8170+2261304+461304+466086(Top 21%)1058(Top 9%)1058(Top 19%)
24M24.00 mi1.00 mi8038+1321298+61298+66447(Top 23%)1244(Top 10%)1244(Top 23%)
40K24.85 mi0.85 mi7935+1031285+131285+136289(Top 22%)1249(Top 10%)1249(Top 23%)
25.2M25.20 mi0.35 mi7867+681270+151270+156139(Top 22%)1297(Top 11%)1297(Top 24%)
Finish26.22 mi1.02 mi7711+1561243+271243+275249(Top 18%)953(Top 8%)953(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9835

Females

1812

F18-39

1812

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8221

Females

1082

F18-39

1082

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9835

Females

1812

F18-39

1812

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

10253

Females

2080

F18-39

2080

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7734

Females

995

F18-39

995

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8730

Females

1514

F18-39

1514

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8791

Females

1738

F18-39

1738

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7992

Females

1535

F18-39

1535

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7550

Females

1530

F18-39

1530

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

7022

Females

1295

F18-39

1295

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

6086

Females

1058

F18-39

1058

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6447

Females

1244

F18-39

1244

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6289

Females

1249

F18-39

1249

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6139

Females

1297

F18-39

1297

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

5249

Females

953

F18-39

953

Passing Analysis

Category:
Athletes Passed
1982
Passed By
1644
Net Change
+338
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8049
5K → 10K183255-72#8049#8121
10K → 15K41540-499#8121#8620
15K → 20K87419-332#8620#8952
20K → Half996+93#8952#8859
Half → 25K185107+78#8859#8781
25K → 30K244158+86#8781#8695
30K → 20M14849+99#8695#8596
20M → 21M15540+115#8596#8481
21M → 35K10015+85#8481#8396
35K → 23M23711+226#8396#8170
23M → 24M15220+132#8170#8038
24M → 40K11916+103#8038#7935
40K → 25.2M713+68#7935#7867
25.2M → Finish1615+156#7867#7711
TOTALS19821644+338
📊

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