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BOSTON MARATHON 2025

Mariangela Guzman

Bib: 19715•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 36%
Division (F18-39)
#0 / 5469
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
7:51/mi
24:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:20
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:37:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:43:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
2:02:48
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:29:13
↑ 181↓ 1480.2%
20M
8:35/mi
2:40:53
↑ 64↓ 500.2%
21M
9:05/mi
2:49:58
↑ 106↓ 241.6%
35K· 21.75 mi
8:28/mi
2:56:18
↑ 17↓ 861.7%
23M
8:46/mi
3:07:16
↑ 23↓ 630.6%
24M
8:19/mi
3:15:35
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:22:52
↓ 200.3%
25.2M
8:56/mi
3:25:57
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:33:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:21
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:50:31
Pace8:26 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3024:247:5124:24
7:51
-
10K
6.21 mi11:42:5348:477:5124:24
7:51
0:00
15K
9.32 mi12:07:261:13:207:5224:33
7:54
+0:03
20K
12.43 mi12:32:011:37:557:5324:35
7:55
+0:01
Half
13.11 mi12:37:271:43:217:535:26
7:58
+0:03
25K
15.53 mi12:56:542:02:487:5419:27
8:01
+0:03
30K
18.64 mi13:23:192:29:138:0026:25
8:30
+0:29
20M
20.00 mi13:34:592:40:538:0311:40
8:35
+0:05
21M
21.00 mi13:44:042:49:588:069:05
9:05
+0:30
35K
21.75 mi13:50:242:56:188:066:20
8:28
-0:37
23M
23.00 mi14:01:223:07:168:0910:58
8:46
+0:18
24M
24.00 mi14:09:413:15:358:098:19
8:19
-0:27
40K
24.85 mi14:16:583:22:528:107:17
8:31
+0:12
25.2M
25.20 mi14:20:033:25:578:103:05
8:56
+0:25
Finish
26.22 mi14:27:583:33:528:107:55
7:46
-1:10

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

7:46 /mi

Average Pace

8:10 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:04

84% of race

Time at Steady Pace

34:48

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:09 /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 mi11:18:3024:247:5124:24
7:51
#15262
10K
6.21 mi11:42:5348:477:5124:24
7:51
#15258
15K
9.32 mi12:07:261:13:207:5224:33
7:54
#15230
20K
12.43 mi12:32:011:37:557:5324:35
7:55
#14907
Half
13.11 mi12:37:271:43:217:535:26
7:58
#14956
25K
15.53 mi12:56:542:02:487:5419:27
8:01
#14765
30K
18.64 mi13:23:192:29:138:0026:25
8:30
#14774
20M
20.00 mi13:34:592:40:538:0311:40
8:35
#14702
21M
21.00 mi13:44:042:49:588:069:05
9:05
#14637
35K
21.75 mi13:50:242:56:188:066:20
8:28
#14625
23M
23.00 mi14:01:223:07:168:0910:58
8:46
#14616
24M
24.00 mi14:09:413:15:358:098:19
8:19
#14538
40K
24.85 mi14:16:583:22:528:107:17
8:31
#14475
25.2M
25.20 mi14:20:033:25:578:103:05
8:56
#14412
Finish
26.22 mi14:27:583:33:528:107:55
7:46
#14248
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi152624697469715264(Top 54%)4733(Top 39%)4733(Top 87%)
10K6.21 mi3.10 mi15258+44697469715267(Top 54%)4704(Top 38%)4704(Top 86%)
15K9.32 mi3.11 mi15230+284693+44693+415264(Top 54%)4733(Top 39%)4733(Top 87%)
20K12.43 mi3.11 mi14907+3234536+1574536+15714218(Top 50%)4211(Top 34%)4211(Top 77%)
Half13.11 mi0.68 mi14956-494567-314567-3115639(Top 55%)4959(Top 41%)4959(Top 91%)
25K15.53 mi2.42 mi14765+1914482+854482+8514084(Top 50%)4244(Top 35%)4244(Top 78%)
30K18.64 mi3.11 mi14774-94546-644546-6414770(Top 52%)4776(Top 39%)4776(Top 87%)
20M20.00 mi1.36 mi14702+724529+174529+1714357(Top 51%)4697(Top 38%)4697(Top 86%)
21M21.00 mi1.00 mi14637+654519+104519+1014022(Top 49%)4644(Top 38%)4644(Top 85%)
35K21.75 mi0.75 mi14625+124521-24521-215263(Top 54%)5374(Top 44%)5374(Top 98%)
23M23.00 mi1.25 mi14616+94556-354556-3514887(Top 52%)5267(Top 43%)5267(Top 96%)
24M24.00 mi1.00 mi14538+784534+224534+2213397(Top 47%)4518(Top 37%)4518(Top 83%)
40K24.85 mi0.85 mi14475+634530+44530+413574(Top 48%)4740(Top 39%)4740(Top 87%)
25.2M25.20 mi0.35 mi14412+634511+194511+1911555(Top 41%)3792(Top 31%)3792(Top 69%)
Finish26.22 mi1.02 mi14248+1644451+604451+6011254(Top 40%)3590(Top 29%)3590(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15264

Females

4733

F18-39

4733

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15267

Females

4704

F18-39

4704

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15264

Females

4733

F18-39

4733

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14218

Females

4211

F18-39

4211

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15639

Females

4959

F18-39

4959

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14084

Females

4244

F18-39

4244

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14770

Females

4776

F18-39

4776

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14357

Females

4697

F18-39

4697

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

14022

Females

4644

F18-39

4644

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15263

Females

5374

F18-39

5374

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14887

Females

5267

F18-39

5267

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

13397

Females

4518

F18-39

4518

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13574

Females

4740

F18-39

4740

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11555

Females

3792

F18-39

3792

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11254

Females

3590

F18-39

3590

Passing Analysis

Category:
Athletes Passed
2365
Passed By
1351
Net Change
+1014
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15262
5K → 10K293289+4#15262#15258
10K → 15K228200+28#15258#15230
15K → 20K37552+323#15230#14907
20K → Half2170-49#14907#14956
Half → 25K26574+191#14956#14765
25K → 30K250259-9#14765#14774
30K → 20M16795+72#14774#14702
20M → 21M13368+65#14702#14637
21M → 35K8270+12#14637#14625
35K → 23M9889+9#14625#14616
23M → 24M11234+78#14616#14538
24M → 40K10138+63#14538#14475
40K → 25.2M696+63#14475#14412
25.2M → Finish1717+164#14412#14248
TOTALS23651351+1014
📊

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