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BOSTON MARATHON 2025

Julianna Debonis

MA

Bib: 27498 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 49%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:27/mi
26:16
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:08/mi
51:32
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:08/mi
1:16:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:13/mi
1:42:18
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:27/mi
1:48:04
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:28/mi
2:08:36
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:42/mi
2:35:39
↑ 181↓ 1480.2%
138 ft elev
20M
9:07/mi
2:48:03
↑ 64↓ 500.2%
148 ft elev
21M
10:03/mi
2:58:06
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:55/mi
3:04:46
↑ 17↓ 861.7%
156 ft elev
23M
9:10/mi
3:16:15
↑ 23↓ 630.6%
116 ft elev
24M
8:45/mi
3:25:00
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:51/mi
3:32:34
↓ 200.3%
20 ft elev
25.2M
9:43/mi
3:35:55
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:20/mi
3:44:25
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:04
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:56:21
Pace8:53 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:1026:168:2726:16
8:27
-
10K
6.21 mi12:07:2651:328:1825:16
8:08
-0:19
15K
9.32 mi12:32:411:16:478:1425:15
8:08
0:00
20K
12.43 mi12:58:121:42:188:1425:31
8:13
+0:05
Half
13.11 mi13:03:581:48:048:155:46
8:27
+0:14
25K
15.53 mi13:24:302:08:368:1720:32
8:28
+0:01
30K
18.64 mi13:51:332:35:398:2127:03
8:42
+0:14
20M
20.00 mi14:03:572:48:038:2412:24
9:07
+0:25
21M
21.00 mi14:14:002:58:068:2910:03
10:03
+0:56
35K
21.75 mi14:20:403:04:468:306:40
8:55
-1:08
23M
23.00 mi14:32:093:16:158:3211:29
9:10
+0:15
24M
24.00 mi14:40:543:25:008:338:45
8:45
-0:25
40K
24.85 mi14:48:283:32:348:337:34
8:51
+0:06
25.2M
25.20 mi14:51:493:35:558:343:21
9:43
+0:52
Finish
26.22 mi15:00:193:44:258:348:30
8:20
-1:23

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

8:08 /mi

Average Pace

8:34 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:32

38% of race

Time at Steady Pace

1:42:36

46% of race

Time at Slower Pace

37:17

17% of race

Average Pace: 8:34 /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 mi11:42:1026:168:2726:16
8:27
#19624
10K
6.21 mi12:07:2651:328:1825:16
8:08
#18571
15K
9.32 mi12:32:411:16:478:1425:15
8:08
#18029
20K
12.43 mi12:58:121:42:188:1425:31
8:13
#17560
Half
13.11 mi13:03:581:48:048:155:46
8:27
#17632
25K
15.53 mi13:24:302:08:368:1720:32
8:28
#17475
30K
18.64 mi13:51:332:35:398:2127:03
8:42
#17140
20M
20.00 mi14:03:572:48:038:2412:24
9:07
#17154
21M
21.00 mi14:14:002:58:068:2910:03
10:03
#17236
35K
21.75 mi14:20:403:04:468:306:40
8:55
#17249
23M
23.00 mi14:32:093:16:158:3211:29
9:10
#17245
24M
24.00 mi14:40:543:25:008:338:45
8:45
#17167
40K
24.85 mi14:48:283:32:348:337:34
8:51
#17098
25.2M
25.20 mi14:51:493:35:558:343:21
9:43
#17068
Finish
26.22 mi15:00:193:44:258:348:30
8:20
#16996
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi196247271727116938(Top 60%)5699(Top 47%)5699(Top 104%)
10K6.21 mi3.10 mi18571+10536656+6156656+61517444(Top 61%)5966(Top 49%)5966(Top 109%)
15K9.32 mi3.11 mi18029+5426351+3056351+30516938(Top 60%)5699(Top 47%)5699(Top 104%)
20K12.43 mi3.11 mi17560+4696072+2796072+27916398(Top 58%)5440(Top 44%)5440(Top 99%)
Half13.11 mi0.68 mi17632-726116-446116-4418907(Top 67%)6830(Top 56%)6830(Top 125%)
25K15.53 mi2.42 mi17475+1576045+716045+7117000(Top 60%)5856(Top 48%)5856(Top 107%)
30K18.64 mi3.11 mi17140+3355897+1485897+14816051(Top 57%)5494(Top 45%)5494(Top 100%)
20M20.00 mi1.36 mi17154-145933-365933-3617444(Top 61%)6389(Top 52%)6389(Top 117%)
21M21.00 mi1.00 mi17236-826014-816014-8118504(Top 65%)7056(Top 58%)7056(Top 129%)
35K21.75 mi0.75 mi17249-136050-366050-3617819(Top 63%)6795(Top 56%)6795(Top 124%)
23M23.00 mi1.25 mi17245+46082-326082-3217208(Top 61%)6561(Top 54%)6561(Top 120%)
24M24.00 mi1.00 mi17167+786055+276055+2716049(Top 57%)5958(Top 49%)5958(Top 109%)
40K24.85 mi0.85 mi17098+696041+146041+1415495(Top 55%)5800(Top 47%)5800(Top 106%)
25.2M25.20 mi0.35 mi17068+306046-56046-515747(Top 55%)5958(Top 49%)5958(Top 109%)
Finish26.22 mi1.02 mi16996+726015+316015+3115223(Top 54%)5608(Top 46%)5608(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

16938

Females

5699

F18-39

5699

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17444

Females

5966

F18-39

5966

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

16938

Females

5699

F18-39

5699

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16398

Females

5440

F18-39

5440

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

18907

Females

6830

F18-39

6830

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17000

Females

5856

F18-39

5856

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16051

Females

5494

F18-39

5494

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

17444

Females

6389

F18-39

6389

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18504

Females

7056

F18-39

7056

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17819

Females

6795

F18-39

6795

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17208

Females

6561

F18-39

6561

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16049

Females

5958

F18-39

5958

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15495

Females

5800

F18-39

5800

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15747

Females

5958

F18-39

5958

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15223

Females

5608

F18-39

5608

Passing Analysis

Category:
Athletes Passed
3531
Passed By
903
Net Change
+2628
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19624
5K → 10K109037+1053#19624#18571
10K → 15K56826+542#18571#18029
15K → 20K49324+469#18029#17560
20K → Half1486-72#17560#17632
Half → 25K24184+157#17632#17475
25K → 30K39459+335#17475#17140
30K → 20M97111-14#17140#17154
20M → 21M88170-82#17154#17236
21M → 35K6982-13#17236#17249
35K → 23M111107+4#17249#17245
23M → 24M11840+78#17245#17167
24M → 40K9425+69#17167#17098
40K → 25.2M5323+30#17098#17068
25.2M → Finish10129+72#17068#16996
TOTALS3531903+2628
📊

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