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BOSTON MARATHON 2025

Christina Marenghi

Bib: 31597•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:12
Rank: #23920
Start → 5K
29:12 | 9:24/mi
10K· 6.21 mi
59:03
Rank: #24191 (-271)
5K → 10K
29:51 | 9:36/mi
15K· 9.32 mi
1:28:37
Rank: #24060 (+131)
10K → 15K
29:34 | 9:31/mi
20K· 12.43 mi
1:58:04
Rank: #23745 (+315)
15K → 20K
29:27 | 9:29/mi
Half· 13.11 mi
2:04:22
Rank: #23707 (+38)
20K → Half
6:18 | 9:14/mi
25K· 15.53 mi
2:27:19
Rank: #23368 (+339)
Half → 25K
22:57 | 9:28/mi
30K· 18.64 mi
2:57:57
Rank: #22938 (+430)
25K → 30K
30:38 | 9:52/mi
20M
3:11:19
Rank: #22769 (+169)
30K → 20M
13:22 | 9:50/mi
21M
3:21:29
Rank: #22549 (+220)
20M → 21M
10:10 | 10:10/mi
35K· 21.75 mi
3:28:36
Rank: #22458 (+91)
21M → 35K
7:07 | 9:31/mi
23M
3:40:50
Rank: #22299 (+159)
35K → 23M
12:14 | 9:46/mi
24M
3:50:37
Rank: #22209 (+90)
23M → 24M
9:47 | 9:47/mi
40K· 24.85 mi
3:59:07
Rank: #22143 (+66)
24M → 40K
8:30 | 9:56/mi
25.2M
4:02:49
Rank: #22106 (+37)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
4:12:03
Rank: #22001 (+105)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:22
Pace9:29 /mi
2nd Half
Distance13.11 mi
Time2:07:41
Pace9:44 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:2729:129:2429:12
9:24
-
10K
6.21 mi12:25:1859:039:3029:51
9:36
+0:12
15K
9.32 mi12:54:521:28:379:3029:34
9:31
-0:05
20K
12.43 mi13:24:191:58:049:3029:27
9:29
-0:02
Half
13.11 mi13:30:372:04:229:296:18
9:14
-0:15
25K
15.53 mi13:53:342:27:199:2922:57
9:28
+0:14
30K
18.64 mi14:24:122:57:579:3330:38
9:52
+0:24
20M
20.00 mi14:37:343:11:199:3413:22
9:50
-0:02
21M
21.00 mi14:47:443:21:299:3610:10
10:10
+0:20
35K
21.75 mi14:54:513:28:369:367:07
9:31
-0:39
23M
23.00 mi15:07:053:40:509:3612:14
9:46
+0:15
24M
24.00 mi15:16:523:50:379:379:47
9:47
+0:01
40K
24.85 mi15:25:223:59:079:378:30
9:56
+0:09
25.2M
25.20 mi15:29:044:02:499:383:42
10:44
+0:48
Finish
26.22 mi15:38:184:12:039:379:14
9:04
-1:40

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

9:04 /mi

Average Pace

9:37 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:58:11

94% of race

Time at Steady Pace

10:10

4% of race

Time at Slower Pace

3:42

1% of race

Average Pace: 9:37 /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 mi11:55:2729:129:2429:12
9:24
#23920
10K
6.21 mi12:25:1859:039:3029:51
9:36
#24191
15K
9.32 mi12:54:521:28:379:3029:34
9:31
#24060
20K
12.43 mi13:24:191:58:049:3029:27
9:29
#23745
Half
13.11 mi13:30:372:04:229:296:18
9:14
#23707
25K
15.53 mi13:53:342:27:199:2922:57
9:28
#23368
30K
18.64 mi14:24:122:57:579:3330:38
9:52
#22938
20M
20.00 mi14:37:343:11:199:3413:22
9:50
#22769
21M
21.00 mi14:47:443:21:299:3610:10
10:10
#22549
35K
21.75 mi14:54:513:28:369:367:07
9:31
#22458
23M
23.00 mi15:07:053:40:509:3612:14
9:46
#22299
24M
24.00 mi15:16:523:50:379:379:47
9:47
#22209
40K
24.85 mi15:25:223:59:079:378:30
9:56
#22143
25.2M
25.20 mi15:29:044:02:499:383:42
10:44
#22106
Finish
26.22 mi15:38:184:12:039:379:14
9:04
#22001
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi239209657965723798(Top 84%)9540(Top 78%)9540(Top 555%)
10K6.21 mi3.10 mi24191-2719792-1359792-13524385(Top 86%)9902(Top 81%)9902(Top 576%)
15K9.32 mi3.11 mi24060+1319709+839709+8323798(Top 84%)9540(Top 78%)9540(Top 555%)
20K12.43 mi3.11 mi23745+3159545+1649545+16422837(Top 80%)9055(Top 74%)9055(Top 527%)
Half13.11 mi0.68 mi23707+389526+199526+1922757(Top 80%)9011(Top 74%)9011(Top 525%)
25K15.53 mi2.42 mi23368+3399339+1879339+18721756(Top 77%)8524(Top 70%)8524(Top 496%)
30K18.64 mi3.11 mi22938+4309148+1919148+19121195(Top 75%)8340(Top 68%)8340(Top 485%)
20M20.00 mi1.36 mi22769+1699086+629086+6220424(Top 72%)8036(Top 66%)8036(Top 468%)
21M21.00 mi1.00 mi22549+2208972+1148972+11418940(Top 67%)7311(Top 60%)7311(Top 426%)
35K21.75 mi0.75 mi22458+918938+348938+3420402(Top 72%)8193(Top 67%)8193(Top 477%)
23M23.00 mi1.25 mi22299+1598883+558883+5519708(Top 69%)7897(Top 65%)7897(Top 460%)
24M24.00 mi1.00 mi22209+908866+178866+1720693(Top 73%)8446(Top 69%)8446(Top 492%)
40K24.85 mi0.85 mi22143+668837+298837+2920290(Top 71%)8310(Top 68%)8310(Top 484%)
25.2M25.20 mi0.35 mi22106+378825+128825+1219876(Top 70%)8104(Top 66%)8104(Top 472%)
Finish26.22 mi1.02 mi22001+1058778+478778+4719370(Top 68%)7802(Top 64%)7802(Top 454%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

23798

Females

9540

F40-44

9540

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

24385

Females

9902

F40-44

9902

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

23798

Females

9540

F40-44

9540

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22837

Females

9055

F40-44

9055

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

22757

Females

9011

F40-44

9011

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21756

Females

8524

F40-44

8524

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

21195

Females

8340

F40-44

8340

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20424

Females

8036

F40-44

8036

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

18940

Females

7311

F40-44

7311

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20402

Females

8193

F40-44

8193

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19708

Females

7897

F40-44

7897

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

20693

Females

8446

F40-44

8446

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20290

Females

8310

F40-44

8310

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19876

Females

8104

F40-44

8104

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19370

Females

7802

F40-44

7802

Passing Analysis

Category:
Athletes Passed
2523
Passed By
604
Net Change
+1919
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23920
5K → 10K127398-271#23920#24191
10K → 15K21079+131#24191#24060
15K → 20K33621+315#24060#23745
20K → Half435+38#23745#23707
Half → 25K3423+339#23707#23368
25K → 30K44717+430#23368#22938
30K → 20M18314+169#22938#22769
20M → 21M2222+220#22769#22549
21M → 35K998+91#22549#22458
35K → 23M1656+159#22458#22299
23M → 24M10414+90#22299#22209
24M → 40K8115+66#22209#22143
40K → 25.2M458+37#22143#22106
25.2M → Finish11914+105#22106#22001
TOTALS2523604+1919
📊

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