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BOSTON MARATHON 2025

Mary Zuccarello

Bib: 14889•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:19
Rank: #12298
Start → 5K
23:19 | 7:30/mi
10K· 6.21 mi
46:17
Rank: #11684 (+614)
5K → 10K
22:58 | 7:24/mi
15K· 9.32 mi
1:09:13
Rank: #11311 (+373)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:32:13
Rank: #10937 (+374)
15K → 20K
23:00 | 7:24/mi
Half· 13.11 mi
1:37:10
Rank: #10852 (+85)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:54:58
Rank: #10459 (+393)
Half → 25K
17:48 | 7:20/mi
30K· 18.64 mi
2:18:28
Rank: #9939 (+520)
25K → 30K
23:30 | 7:34/mi
20M
2:28:55
Rank: #9758 (+181)
30K → 20M
10:27 | 7:41/mi
21M
2:37:06
Rank: #9650 (+108)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:42:39
Rank: #9567 (+83)
21M → 35K
5:33 | 7:25/mi
23M
2:52:11
Rank: #9379 (+188)
35K → 23M
9:32 | 7:37/mi
24M
2:59:38
Rank: #9269 (+110)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:06:06
Rank: #9142 (+127)
24M → 40K
6:28 | 7:34/mi
25.2M
3:09:04
Rank: #9124 (+18)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:16:36
Rank: #9062 (+62)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:10
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:39:26
Pace7:35 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3023:197:3023:19
7:30
-
10K
6.21 mi11:16:2846:177:2722:58
7:24
-0:06
15K
9.32 mi11:39:241:09:137:2622:56
7:23
-0:01
20K
12.43 mi12:02:241:32:137:2523:00
7:24
+0:01
Half
13.11 mi12:07:211:37:107:254:57
7:15
-0:09
25K
15.53 mi12:25:091:54:587:2417:48
7:20
+0:05
30K
18.64 mi12:48:392:18:287:2623:30
7:34
+0:14
20M
20.00 mi12:59:062:28:557:2710:27
7:41
+0:07
21M
21.00 mi13:07:172:37:067:298:11
8:11
+0:30
35K
21.75 mi13:12:502:42:397:295:33
7:25
-0:46
23M
23.00 mi13:22:222:52:117:299:32
7:37
+0:12
24M
24.00 mi13:29:492:59:387:297:27
7:27
-0:10
40K
24.85 mi13:36:173:06:067:296:28
7:34
+0:07
25.2M
25.20 mi13:39:153:09:047:302:58
8:36
+1:02
Finish
26.22 mi13:46:473:16:367:307:32
7:24
-1:12

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

7:15 /mi

Average Pace

7:30 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:27

94% of race

Time at Steady Pace

8:11

4% of race

Time at Slower Pace

2:58

2% of race

Average Pace: 7:30 /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 mi10:53:3023:197:3023:19
7:30
#12298
10K
6.21 mi11:16:2846:177:2722:58
7:24
#11684
15K
9.32 mi11:39:241:09:137:2622:56
7:23
#11311
20K
12.43 mi12:02:241:32:137:2523:00
7:24
#10937
Half
13.11 mi12:07:211:37:107:254:57
7:15
#10852
25K
15.53 mi12:25:091:54:587:2417:48
7:20
#10459
30K
18.64 mi12:48:392:18:287:2623:30
7:34
#9939
20M
20.00 mi12:59:062:28:557:2710:27
7:41
#9758
21M
21.00 mi13:07:172:37:067:298:11
8:11
#9650
35K
21.75 mi13:12:502:42:397:295:33
7:25
#9567
23M
23.00 mi13:22:222:52:117:299:32
7:37
#9379
24M
24.00 mi13:29:492:59:387:297:27
7:27
#9269
40K
24.85 mi13:36:173:06:067:296:28
7:34
#9142
25.2M
25.20 mi13:39:153:09:047:302:58
8:36
#9124
Finish
26.22 mi13:46:473:16:367:307:32
7:24
#9062
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122982959295910704(Top 38%)2219(Top 18%)2219(Top 41%)
10K6.21 mi3.10 mi11684+6142639+3202639+32011135(Top 39%)2379(Top 19%)2379(Top 43%)
15K9.32 mi3.11 mi11311+3732478+1612478+16110704(Top 38%)2219(Top 18%)2219(Top 41%)
20K12.43 mi3.11 mi10937+3742302+1762302+1769941(Top 35%)1930(Top 16%)1930(Top 35%)
Half13.11 mi0.68 mi10852+852268+342268+349671(Top 34%)1799(Top 15%)1799(Top 33%)
25K15.53 mi2.42 mi10459+3932112+1562112+1568694(Top 31%)1500(Top 12%)1500(Top 27%)
30K18.64 mi3.11 mi9939+5201928+1841928+1848191(Top 29%)1473(Top 12%)1473(Top 27%)
20M20.00 mi1.36 mi9758+1811883+451883+458298(Top 29%)1662(Top 14%)1662(Top 30%)
21M21.00 mi1.00 mi9650+1081856+271856+278503(Top 30%)1938(Top 16%)1938(Top 35%)
35K21.75 mi0.75 mi9567+831842+141842+148098(Top 29%)1724(Top 14%)1724(Top 32%)
23M23.00 mi1.25 mi9379+1881805+371805+377360(Top 26%)1559(Top 13%)1559(Top 29%)
24M24.00 mi1.00 mi9269+1101786+191786+197377(Top 26%)1607(Top 13%)1607(Top 29%)
40K24.85 mi0.85 mi9142+1271766+201766+207215(Top 25%)1645(Top 13%)1645(Top 30%)
25.2M25.20 mi0.35 mi9124+181779-131779-139463(Top 33%)2740(Top 22%)2740(Top 50%)
Finish26.22 mi1.02 mi9062+621797-181797-188441(Top 30%)2252(Top 18%)2252(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10704

Females

2219

F18-39

2219

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

11135

Females

2379

F18-39

2379

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10704

Females

2219

F18-39

2219

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9941

Females

1930

F18-39

1930

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9671

Females

1799

F18-39

1799

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8694

Females

1500

F18-39

1500

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8191

Females

1473

F18-39

1473

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8298

Females

1662

F18-39

1662

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8503

Females

1938

F18-39

1938

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8098

Females

1724

F18-39

1724

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7360

Females

1559

F18-39

1559

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7377

Females

1607

F18-39

1607

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7215

Females

1645

F18-39

1645

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9463

Females

2740

F18-39

2740

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8441

Females

2252

F18-39

2252

Passing Analysis

Category:
Athletes Passed
3635*
Passed By
398
Net Change
+3236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12298
5K → 10K68066+614#12298#11684
10K → 15K41340+373#11684#11311
15K → 20K39925+374#11311#10937
20K → Half927+85#10937#10852
Half → 25K40310+393#10852#10459
25K → 30K544*24+520#10459#9939
30K → 20M20927+181#9939#9758
20M → 21M14335+108#9758#9650
21M → 35K10017+83#9650#9567
35K → 23M20921+188#9567#9379
23M → 24M14131+110#9379#9269
24M → 40K14720+127#9269#9142
40K → 25.2M4325+18#9142#9124
25.2M → Finish11250+62#9124#9062
TOTALS3635*398+3236

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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