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BOSTON MARATHON 2025

Paula Zambiasi

Bib: 21201•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 49%
Division (F45-49)
#0 / 1813
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:17
↑ 79↓ 1380.4%
15K· 9.32 mi
8:07/mi
1:14:31
↑ 67↓ 78
20K· 12.43 mi
8:29/mi
1:40:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:46:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:07:53
↑ 66↓ 880.2%
30K· 18.64 mi
9:46/mi
2:38:15
↑ 181↓ 1480.2%
20M
9:46/mi
2:51:31
↑ 64↓ 500.2%
21M
11:15/mi
3:02:46
↑ 106↓ 241.6%
35K· 21.75 mi
10:10/mi
3:10:22
↑ 17↓ 861.7%
23M
9:34/mi
3:22:21
↑ 23↓ 630.6%
24M
9:02/mi
3:31:23
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:39:11
↓ 200.3%
25.2M
10:06/mi
3:42:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:07/mi
3:51:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:41
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time2:05:16
Pace9:33 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4224:377:5524:37
7:55
-
10K
6.21 mi11:43:2249:177:5624:40
7:56
+0:01
15K
9.32 mi12:08:361:14:318:0025:14
8:07
+0:11
20K
12.43 mi12:34:571:40:528:0726:21
8:29
+0:22
Half
13.11 mi12:40:461:46:418:085:49
8:32
+0:03
25K
15.53 mi13:01:582:07:538:1421:12
8:45
+0:13
30K
18.64 mi13:32:202:38:158:2930:22
9:46
+1:01
20M
20.00 mi13:45:362:51:318:3513:16
9:46
0:00
21M
21.00 mi13:56:513:02:468:4211:15
11:15
+1:29
35K
21.75 mi14:04:273:10:228:457:36
10:10
-1:05
23M
23.00 mi14:16:263:22:218:4811:59
9:34
-0:36
24M
24.00 mi14:25:283:31:238:489:02
9:02
-0:32
40K
24.85 mi14:33:163:39:118:497:48
9:07
+0:05
25.2M
25.20 mi14:36:453:42:408:503:29
10:06
+0:59
Finish
26.22 mi14:46:023:51:578:519:17
9:07
-0:59

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

7:55 /mi

Average Pace

8:51 /mi

Slowest Pace

11:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:41

46% of race

Time at Steady Pace

59:18

26% of race

Time at Slower Pace

1:05:58

28% of race

Average Pace: 8:51 /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 mi11:18:4224:377:5524:37
7:55
#15967
10K
6.21 mi11:43:2249:177:5624:40
7:56
#15962
15K
9.32 mi12:08:361:14:318:0025:14
8:07
#16294
20K
12.43 mi12:34:571:40:528:0726:21
8:29
#16810
Half
13.11 mi12:40:461:46:418:085:49
8:32
#16948
25K
15.53 mi13:01:582:07:538:1421:12
8:45
#17163
30K
18.64 mi13:32:202:38:158:2930:22
9:46
#18037
20M
20.00 mi13:45:362:51:318:3513:16
9:46
#18272
21M
21.00 mi13:56:513:02:468:4211:15
11:15
#18633
35K
21.75 mi14:04:273:10:228:457:36
10:10
#18846
23M
23.00 mi14:16:263:22:218:4811:59
9:34
#18861
24M
24.00 mi14:25:283:31:238:489:02
9:02
#18814
40K
24.85 mi14:33:163:39:118:497:48
9:07
#18736
25.2M
25.20 mi14:36:453:42:408:503:29
10:06
#18707
Finish
26.22 mi14:46:023:51:578:519:17
9:07
#18733
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi159675133513316908(Top 60%)5679(Top 46%)5679(Top 313%)
10K6.21 mi3.10 mi15962+55114+195114+1916004(Top 56%)5127(Top 42%)5127(Top 283%)
15K9.32 mi3.11 mi16294-3325309-1955309-19516908(Top 60%)5679(Top 46%)5679(Top 313%)
20K12.43 mi3.11 mi16810-5165626-3175626-31718121(Top 64%)6411(Top 52%)6411(Top 354%)
Half13.11 mi0.68 mi16948-1385712-865712-8619415(Top 68%)7136(Top 58%)7136(Top 394%)
25K15.53 mi2.42 mi17163-2155865-1535865-15318652(Top 66%)6785(Top 55%)6785(Top 374%)
30K18.64 mi3.11 mi18037-8746419-5546419-55420910(Top 74%)8180(Top 67%)8180(Top 451%)
20M20.00 mi1.36 mi18272-2356568-1496568-14920170(Top 71%)7890(Top 65%)7890(Top 435%)
21M21.00 mi1.00 mi18633-3616793-2256793-22522041(Top 78%)8987(Top 73%)8987(Top 496%)
35K21.75 mi0.75 mi18846-2136935-1426935-14222327(Top 79%)9198(Top 75%)9198(Top 507%)
23M23.00 mi1.25 mi18861-156974-396974-3918983(Top 67%)7506(Top 61%)7506(Top 414%)
24M24.00 mi1.00 mi18814+476964+106964+1017559(Top 62%)6795(Top 56%)6795(Top 375%)
40K24.85 mi0.85 mi18736+786956+86956+817011(Top 60%)6594(Top 54%)6594(Top 364%)
25.2M25.20 mi0.35 mi18707+296951+56951+517523(Top 62%)6877(Top 56%)6877(Top 379%)
Finish26.22 mi1.02 mi18733-266980-296980-2919563(Top 69%)7900(Top 65%)7900(Top 436%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

16908

Females

5679

F45-49

5679

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

16004

Females

5127

F45-49

5127

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

16908

Females

5679

F45-49

5679

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18121

Females

6411

F45-49

6411

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19415

Females

7136

F45-49

7136

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18652

Females

6785

F45-49

6785

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20910

Females

8180

F45-49

8180

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20170

Females

7890

F45-49

7890

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22041

Females

8987

F45-49

8987

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22327

Females

9198

F45-49

9198

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

18983

Females

7506

F45-49

7506

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17559

Females

6795

F45-49

6795

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17011

Females

6594

F45-49

6594

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17523

Females

6877

F45-49

6877

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19563

Females

7900

F45-49

7900

Passing Analysis

Category:
Athletes Passed
1181
Passed By
3947
Net Change
-2766
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15967
5K → 10K328323+5#15967#15962
10K → 15K105437-332#15962#16294
15K → 20K78594-516#16294#16810
20K → Half7145-138#16810#16948
Half → 25K100315-215#16948#17163
25K → 30K61935-874#17163#18037
30K → 20M62297-235#18037#18272
20M → 21M29390-361#18272#18633
21M → 35K19232-213#18633#18846
35K → 23M100115-15#18846#18861
23M → 24M8740+47#18861#18814
24M → 40K10527+78#18814#18736
40K → 25.2M5425+29#18736#18707
25.2M → Finish4672-26#18707#18733
TOTALS11813947-2766
📊

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