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BOSTON MARATHON 2025

Julia Burdulis

Bib: 11812•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 14%
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
7:15/mi
22:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
44:49
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:07:03
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:29:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:34:16
↑ 19↓ 370.5%
25K· 15.53 mi
7:09/mi
1:51:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:08/mi
2:13:45
↑ 181↓ 1480.2%
20M
7:12/mi
2:23:32
↑ 64↓ 500.2%
21M
7:39/mi
2:31:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:16/mi
2:36:37
↑ 17↓ 861.7%
23M
7:21/mi
2:45:49
↑ 23↓ 630.6%
24M
7:17/mi
2:53:06
↓ 821.3%
40K· 24.85 mi
7:21/mi
2:59:23
↓ 200.3%
25.2M
7:53/mi
3:02:06
↑ 13↓ 160.2%
Finish· 26.22 mi
6:50/mi
3:09:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:16
Pace7:11 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:48
Pace7:14 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4822:307:1522:30
7:15
-
10K
6.21 mi11:13:0744:497:1322:19
7:11
-0:04
15K
9.32 mi11:35:211:07:037:1222:14
7:09
-0:02
20K
12.43 mi11:57:421:29:247:1222:21
7:12
+0:03
Half
13.11 mi12:02:341:34:167:114:52
7:08
-0:04
25K
15.53 mi12:19:531:51:357:1117:19
7:09
+0:01
30K
18.64 mi12:42:032:13:457:1022:10
7:08
-0:01
20M
20.00 mi12:51:502:23:327:119:47
7:12
+0:04
21M
21.00 mi12:59:292:31:117:127:39
7:39
+0:27
35K
21.75 mi13:04:552:36:377:125:26
7:16
-0:23
23M
23.00 mi13:14:072:45:497:139:12
7:21
+0:05
24M
24.00 mi13:21:242:53:067:137:17
7:17
-0:04
40K
24.85 mi13:27:412:59:237:136:17
7:21
+0:04
25.2M
25.20 mi13:30:243:02:067:142:43
7:53
+0:32
Finish
26.22 mi13:37:223:09:047:136:58
6:50
-1:03

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

6:50 /mi

Average Pace

7:13 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:42

95% of race

Time at Steady Pace

10:22

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi10:50:4822:307:1522:30
7:15
#9848
10K
6.21 mi11:13:0744:497:1322:19
7:11
#9562
15K
9.32 mi11:35:211:07:037:1222:14
7:09
#9284
20K
12.43 mi11:57:421:29:247:1222:21
7:12
#8923
Half
13.11 mi12:02:341:34:167:114:52
7:08
#8899
25K
15.53 mi12:19:531:51:357:1117:19
7:09
#8542
30K
18.64 mi12:42:032:13:457:1022:10
7:08
#7868
20M
20.00 mi12:51:502:23:327:119:47
7:12
#7580
21M
21.00 mi12:59:292:31:117:127:39
7:39
#7381
35K
21.75 mi13:04:552:36:377:125:26
7:16
#7320
23M
23.00 mi13:14:072:45:497:139:12
7:21
#7164
24M
24.00 mi13:21:242:53:067:137:17
7:17
#7088
40K
24.85 mi13:27:412:59:237:136:17
7:21
#6992
25.2M
25.20 mi13:30:243:02:067:142:43
7:53
#6946
Finish
26.22 mi13:37:223:09:047:136:58
6:50
#6792
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9848173617368756(Top 31%)1322(Top 11%)1322(Top 24%)
10K6.21 mi3.10 mi9562+2861596+1401596+1409349(Top 33%)1529(Top 13%)1529(Top 28%)
15K9.32 mi3.11 mi9284+2781514+821514+828756(Top 31%)1322(Top 11%)1322(Top 24%)
20K12.43 mi3.11 mi8923+3611383+1311383+1318165(Top 29%)1169(Top 10%)1169(Top 21%)
Half13.11 mi0.68 mi8899+241377+61377+68581(Top 30%)1302(Top 11%)1302(Top 24%)
25K15.53 mi2.42 mi8542+3571260+1171260+1177243(Top 25%)941(Top 8%)941(Top 17%)
30K18.64 mi3.11 mi7868+6741054+2061054+2065540(Top 20%)563(Top 5%)563(Top 10%)
20M20.00 mi1.36 mi7580+288986+68986+685221(Top 18%)569(Top 5%)569(Top 10%)
21M21.00 mi1.00 mi7381+199950+36950+365419(Top 19%)729(Top 6%)729(Top 13%)
35K21.75 mi0.75 mi7320+61960-10960-107008(Top 25%)1281(Top 10%)1281(Top 23%)
23M23.00 mi1.25 mi7164+156945+15945+155758(Top 20%)913(Top 7%)913(Top 17%)
24M24.00 mi1.00 mi7088+76951-6951-66334(Top 22%)1192(Top 10%)1192(Top 22%)
40K24.85 mi0.85 mi6992+96939+12939+125939(Top 21%)1109(Top 9%)1109(Top 20%)
25.2M25.20 mi0.35 mi6946+469399395370(Top 19%)1000(Top 8%)1000(Top 18%)
Finish26.22 mi1.02 mi6792+154921+18921+184755(Top 17%)780(Top 6%)780(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8756

Females

1322

F18-39

1322

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9349

Females

1529

F18-39

1529

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8756

Females

1322

F18-39

1322

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8165

Females

1169

F18-39

1169

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8581

Females

1302

F18-39

1302

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7243

Females

941

F18-39

941

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5540

Females

563

F18-39

563

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

5221

Females

569

F18-39

569

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5419

Females

729

F18-39

729

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

7008

Females

1281

F18-39

1281

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5758

Females

913

F18-39

913

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6334

Females

1192

F18-39

1192

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5939

Females

1109

F18-39

1109

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5370

Females

1000

F18-39

1000

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4755

Females

780

F18-39

780

Passing Analysis

Category:
Athletes Passed
3384
Passed By
327
Net Change
+3056
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9848
5K → 10K401114+286#9848#9562
10K → 15K32648+278#9562#9284
15K → 20K38625+361#9284#8923
20K → Half4420+24#8923#8899
Half → 25K36912+357#8899#8542
25K → 30K6773+674#8542#7868
30K → 20M2880+288#7868#7580
20M → 21M2056+199#7580#7381
21M → 35K8524+61#7381#7320
35K → 23M17519+156#7320#7164
23M → 24M9923+76#7164#7088
24M → 40K11418+96#7088#6992
40K → 25.2M526+46#6992#6946
25.2M → Finish1639+154#6946#6792
TOTALS3384327+3056
📊

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