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BOSTON MARATHON 2025

Julianna Portelli

Bib: 16190•F

RI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 22%
Division (F18-39)
#0 / 5469
Top 38%
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
7:19/mi
22:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:22
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:36:28
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:54:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:19:22
↑ 181↓ 1480.2%
20M
8:11/mi
2:30:29
↑ 64↓ 500.2%
21M
8:52/mi
2:39:21
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:45:11
↑ 17↓ 861.7%
23M
8:26/mi
2:55:45
↑ 23↓ 630.6%
24M
8:14/mi
3:03:59
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:11:13
↓ 200.3%
25.2M
9:28/mi
3:14:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:55/mi
3:22:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:28
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:46:05
Pace8:06 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4722:437:1922:43
7:19
-
10K
6.21 mi11:19:3245:287:1922:45
7:19
0:00
15K
9.32 mi11:42:261:08:227:2022:54
7:22
+0:03
20K
12.43 mi12:05:291:31:257:2123:03
7:25
+0:03
Half
13.11 mi12:10:321:36:287:225:03
7:24
-0:01
25K
15.53 mi12:28:501:54:467:2318:18
7:33
+0:09
30K
18.64 mi12:53:262:19:227:2924:36
7:55
+0:22
20M
20.00 mi13:04:332:30:297:3111:07
8:11
+0:16
21M
21.00 mi13:13:252:39:217:358:52
8:52
+0:41
35K
21.75 mi13:19:152:45:117:365:50
7:48
-1:04
23M
23.00 mi13:29:492:55:457:3810:34
8:26
+0:38
24M
24.00 mi13:38:033:03:597:408:14
8:14
-0:12
40K
24.85 mi13:45:173:11:137:427:14
8:28
+0:14
25.2M
25.20 mi13:48:333:14:297:433:16
9:28
+1:00
Finish
26.22 mi13:56:373:22:337:448:04
7:55
-1:33

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

7:19 /mi

Average Pace

7:44 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:46

57% of race

Time at Steady Pace

49:37

24% of race

Time at Slower Pace

38:10

19% of race

Average Pace: 7:44 /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 mi10:56:4722:437:1922:43
7:19
#10451
10K
6.21 mi11:19:3245:287:1922:45
7:19
#10463
15K
9.32 mi11:42:261:08:227:2022:54
7:22
#10521
20K
12.43 mi12:05:291:31:257:2123:03
7:25
#10359
Half
13.11 mi12:10:321:36:287:225:03
7:24
#10369
25K
15.53 mi12:28:501:54:467:2318:18
7:33
#10332
30K
18.64 mi12:53:262:19:227:2924:36
7:55
#10363
20M
20.00 mi13:04:332:30:297:3111:07
8:11
#10452
21M
21.00 mi13:13:252:39:217:358:52
8:52
#10588
35K
21.75 mi13:19:152:45:117:365:50
7:48
#10568
23M
23.00 mi13:29:492:55:457:3810:34
8:26
#10669
24M
24.00 mi13:38:033:03:597:408:14
8:14
#10741
40K
24.85 mi13:45:173:11:137:427:14
8:28
#10813
25.2M
25.20 mi13:48:333:14:297:433:16
9:28
#10871
Finish
26.22 mi13:56:373:22:337:448:04
7:55
#10896
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104512021202110577(Top 37%)2166(Top 18%)2166(Top 40%)
10K6.21 mi3.10 mi10463-122040-192040-1910509(Top 37%)2069(Top 17%)2069(Top 38%)
15K9.32 mi3.11 mi10521-582090-502090-5010577(Top 37%)2166(Top 18%)2166(Top 40%)
20K12.43 mi3.11 mi10359+1622035+552035+5510035(Top 35%)1980(Top 16%)1980(Top 36%)
Half13.11 mi0.68 mi10369-102051-162051-1610782(Top 38%)2344(Top 19%)2344(Top 43%)
25K15.53 mi2.42 mi10332+372058-72058-710324(Top 36%)2252(Top 18%)2252(Top 41%)
30K18.64 mi3.11 mi10363-312133-752133-7510760(Top 38%)2674(Top 22%)2674(Top 49%)
20M20.00 mi1.36 mi10452-892224-912224-9111656(Top 41%)3278(Top 27%)3278(Top 60%)
21M21.00 mi1.00 mi10588-1362338-1142338-11412661(Top 45%)3970(Top 32%)3970(Top 73%)
35K21.75 mi0.75 mi10568+202344-62344-610720(Top 38%)2989(Top 24%)2989(Top 55%)
23M23.00 mi1.25 mi10669-1012441-972441-9712886(Top 45%)4217(Top 34%)4217(Top 77%)
24M24.00 mi1.00 mi10741-722517-762517-7612748(Top 45%)4203(Top 34%)4203(Top 77%)
40K24.85 mi0.85 mi10813-722594-772594-7713117(Top 46%)4526(Top 37%)4526(Top 83%)
25.2M25.20 mi0.35 mi10871-582641-472641-4714313(Top 50%)5227(Top 43%)5227(Top 96%)
Finish26.22 mi1.02 mi10896-252689-482689-4812226(Top 43%)4062(Top 33%)4062(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10577

Females

2166

F18-39

2166

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10509

Females

2069

F18-39

2069

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10577

Females

2166

F18-39

2166

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

10035

Females

1980

F18-39

1980

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10782

Females

2344

F18-39

2344

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10324

Females

2252

F18-39

2252

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10760

Females

2674

F18-39

2674

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11656

Females

3278

F18-39

3278

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12661

Females

3970

F18-39

3970

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10720

Females

2989

F18-39

2989

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12886

Females

4217

F18-39

4217

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12748

Females

4203

F18-39

4203

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13117

Females

4526

F18-39

4526

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14313

Females

5227

F18-39

5227

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

12226

Females

4062

F18-39

4062

Passing Analysis

Category:
Athletes Passed
1571
Passed By
2015
Net Change
-445
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10451
5K → 10K258270-12#10451#10463
10K → 15K152210-58#10463#10521
15K → 20K24482+162#10521#10359
20K → Half2939-10#10359#10369
Half → 25K174137+37#10369#10332
25K → 30K234264-31#10332#10363
30K → 20M89178-89#10363#10452
20M → 21M69205-136#10452#10588
21M → 35K6040+20#10588#10568
35K → 23M81182-101#10568#10669
23M → 24M53125-72#10669#10741
24M → 40K49121-72#10741#10813
40K → 25.2M2078-58#10813#10871
25.2M → Finish5984-25#10871#10896
TOTALS15712015-445
📊

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