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BOSTON MARATHON 2025

Julianna Bertolino

Bib: 15448•F

NJ

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 37%
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
7:13/mi
22:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
44:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:11/mi
1:06:55
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:30:01
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:35:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:41/mi
1:53:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:18:32
↑ 181↓ 1480.2%
20M
8:15/mi
2:29:44
↑ 64↓ 500.2%
21M
8:40/mi
2:38:24
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:44:22
↑ 17↓ 861.7%
23M
8:24/mi
2:54:53
↑ 23↓ 630.6%
24M
8:35/mi
3:03:28
↓ 821.3%
40K· 24.85 mi
8:42/mi
3:10:54
↓ 200.3%
25.2M
8:56/mi
3:13:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:22:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:05
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:47:09
Pace8:10 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4822:247:1322:24
7:13
-
10K
6.21 mi11:16:0044:367:1122:12
7:09
-0:04
15K
9.32 mi11:38:191:06:557:1122:19
7:11
+0:02
20K
12.43 mi12:01:251:30:017:1523:06
7:26
+0:15
Half
13.11 mi12:06:291:35:057:155:04
7:26
0:00
25K
15.53 mi12:25:071:53:437:1918:38
7:41
+0:15
30K
18.64 mi12:49:562:18:327:2624:49
7:59
+0:18
20M
20.00 mi13:01:082:29:447:2911:12
8:15
+0:16
21M
21.00 mi13:09:482:38:247:338:40
8:40
+0:25
35K
21.75 mi13:15:462:44:227:335:58
7:59
-0:41
23M
23.00 mi13:26:172:54:537:3610:31
8:24
+0:25
24M
24.00 mi13:34:523:03:287:398:35
8:35
+0:11
40K
24.85 mi13:42:183:10:547:417:26
8:42
+0:07
25.2M
25.20 mi13:45:233:13:597:423:05
8:56
+0:14
Finish
26.22 mi13:53:383:22:147:438:15
8:06
-0:50

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

7:09 /mi

Average Pace

7:43 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:43

56% of race

Time at Steady Pace

50:14

25% of race

Time at Slower Pace

38:17

19% of race

Average Pace: 7:43 /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 mi10:53:4822:247:1322:24
7:13
#9559
10K
6.21 mi11:16:0044:367:1122:12
7:09
#9274
15K
9.32 mi11:38:191:06:557:1122:19
7:11
#9162
20K
12.43 mi12:01:251:30:017:1523:06
7:26
#9371
Half
13.11 mi12:06:291:35:057:155:04
7:26
#9431
25K
15.53 mi12:25:071:53:437:1918:38
7:41
#9741
30K
18.64 mi12:49:562:18:327:2624:49
7:59
#9982
20M
20.00 mi13:01:082:29:447:2911:12
8:15
#10118
21M
21.00 mi13:09:482:38:247:338:40
8:40
#10191
35K
21.75 mi13:15:462:44:227:335:58
7:59
#10250
23M
23.00 mi13:26:172:54:537:3610:31
8:24
#10372
24M
24.00 mi13:34:523:03:287:398:35
8:35
#10580
40K
24.85 mi13:42:183:10:547:417:26
8:42
#10724
25.2M
25.20 mi13:45:233:13:597:423:05
8:56
#10714
Finish
26.22 mi13:53:383:22:147:438:15
8:06
#10805
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9559161416148989(Top 32%)1428(Top 12%)1428(Top 26%)
10K6.21 mi3.10 mi9274+2851491+1231491+1239055(Top 32%)1400(Top 11%)1400(Top 26%)
15K9.32 mi3.11 mi9162+1121461+301461+308989(Top 32%)1428(Top 12%)1428(Top 26%)
20K12.43 mi3.11 mi9371-2091584-1231584-12310223(Top 36%)2072(Top 17%)2072(Top 38%)
Half13.11 mi0.68 mi9431-601619-351619-3511172(Top 39%)2513(Top 21%)2513(Top 46%)
25K15.53 mi2.42 mi9741-3101786-1671786-16711444(Top 40%)2817(Top 23%)2817(Top 52%)
30K18.64 mi3.11 mi9982-2411946-1601946-16011294(Top 40%)2926(Top 24%)2926(Top 54%)
20M20.00 mi1.36 mi10118-1362044-982044-9812080(Top 43%)3484(Top 28%)3484(Top 64%)
21M21.00 mi1.00 mi10191-732139-952139-9511483(Top 40%)3338(Top 27%)3338(Top 61%)
35K21.75 mi0.75 mi10250-592185-462185-4612124(Top 43%)3698(Top 30%)3698(Top 68%)
23M23.00 mi1.25 mi10372-1222296-1112296-11112689(Top 45%)4087(Top 33%)4087(Top 75%)
24M24.00 mi1.00 mi10580-2082431-1352431-13515053(Top 53%)5394(Top 44%)5394(Top 99%)
40K24.85 mi0.85 mi10724-1442535-1042535-10414580(Top 51%)5279(Top 43%)5279(Top 97%)
25.2M25.20 mi0.35 mi10714+102543-82543-811501(Top 40%)3738(Top 31%)3738(Top 68%)
Finish26.22 mi1.02 mi10805-912637-942637-9413565(Top 48%)4723(Top 39%)4723(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8989

Females

1428

F18-39

1428

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9055

Females

1400

F18-39

1400

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8989

Females

1428

F18-39

1428

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

10223

Females

2072

F18-39

2072

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11172

Females

2513

F18-39

2513

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11444

Females

2817

F18-39

2817

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11294

Females

2926

F18-39

2926

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12080

Females

3484

F18-39

3484

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11483

Females

3338

F18-39

3338

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12124

Females

3698

F18-39

3698

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12689

Females

4087

F18-39

4087

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

15053

Females

5394

F18-39

5394

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14580

Females

5279

F18-39

5279

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11501

Females

3738

F18-39

3738

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13565

Females

4723

F18-39

4723

Passing Analysis

Category:
Athletes Passed
1437
Passed By
2680
Net Change
-1246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9559
5K → 10K405120+285#9559#9274
10K → 15K218106+112#9274#9162
15K → 20K118327-209#9162#9371
20K → Half1272-60#9371#9431
Half → 25K79389-310#9431#9741
25K → 30K156397-241#9741#9982
30K → 20M86220-136#9982#10118
20M → 21M83155-73#10118#10191
21M → 35K42101-59#10191#10250
35K → 23M81203-122#10250#10372
23M → 24M32240-208#10372#10580
24M → 40K36180-144#10580#10724
40K → 25.2M4030+10#10724#10714
25.2M → Finish49140-91#10714#10805
TOTALS14372680-1246
📊

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