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BOSTON MARATHON 2026

Mariana Santos Alcoforado

Bib: 14303•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 31%
Gender (Female)
#0 / 12578
Top 14%
Masters (Masters Women)
#0 / 6862
Top 4%
Age Group (F40-44)
#0 / 1737
Top 9%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
21:54
3.11 mi
Rank: #8973
Start → 5K
21:54 | 7:03/mi
10K
43:46
6.21 mi
Rank: #8922 (+51)
5K → 10K
21:52 | 7:03/mi
15K
1:05:26
9.32 mi
Rank: #8714 (+208)
10K → 15K
21:40 | 6:59/mi
20K
1:27:37
12.43 mi
Rank: #8730 (-16)
15K → 20K
22:11 | 7:09/mi
HALF
1:32:25
13.11 mi
Rank: #8738 (-8)
20K → HALF
4:48 | 7:03/mi
25K
1:49:57
15.53 mi
Rank: #8749 (-11)
HALF → 25K
17:32 | 7:14/mi
30K
2:13:19
18.64 mi
Rank: #8850 (-101)
25K → 30K
23:22 | 7:32/mi
20M
2:23:30
20.00 mi
Rank: #8823 (+27)
30K → 20M
10:11 | 7:30/mi
21M
2:31:27
21.00 mi
Rank: #8828 (-5)
20M → 21M
7:57 | 7:57/mi
35K
2:36:55
21.75 mi
Rank: #8812 (+16)
21M → 35K
5:28 | 7:19/mi
23M
2:46:24
23.00 mi
Rank: #8811 (+1)
35K → 23M
9:29 | 7:35/mi
24M
2:53:52
24.00 mi
Rank: #8806 (+5)
23M → 24M
7:28 | 7:28/mi
40K
3:00:30
24.85 mi
Rank: #8845 (-39)
24M → 40K
6:38 | 7:46/mi
25.2M
3:03:26
25.20 mi
Rank: #8860 (-15)
40K → 25.2M
2:56 | 8:31/mi
FINISH
3:11:10
26.22 mi
Rank: #8937 (-77)
25.2M → FINISH
7:44 | 7:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:25
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:38:45
Pace7:32 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3621:547:0321:54
7:03
-
10K
6.21 mi11:13:2843:467:0321:52
7:03
0:00
15K
9.32 mi11:35:081:05:267:0221:40
6:59
-0:04
20K
12.43 mi11:57:191:27:377:0422:11
7:09
+0:10
HALF
13.11 mi12:02:071:32:257:034:48
7:03
-0:06
25K
15.53 mi12:19:391:49:577:0517:32
7:14
+0:11
30K
18.64 mi12:43:012:13:197:1023:22
7:32
+0:18
20M
20.00 mi12:53:122:23:307:1110:11
7:30
-0:02
21M
21.00 mi13:01:092:31:277:137:57
7:57
+0:27
35K
21.75 mi13:06:372:36:557:135:28
7:19
-0:38
23M
23.00 mi13:16:062:46:247:159:29
7:35
+0:16
24M
24.00 mi13:23:342:53:527:157:28
7:28
-0:07
40K
24.85 mi13:30:123:00:307:166:38
7:46
+0:18
25.2M
25.20 mi13:33:083:03:267:172:56
8:31
+0:45
FINISH
26.22 mi13:40:523:11:107:187:44
7:36
-0:55

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:59 /mi

Average Pace

7:18 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:49:57

58% of race

Time at Steady Pace

1:03:42

33% of race

Time at Slower Pace

17:31

9% of race

Average Pace: 7:17 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:3621:547:0321:54
7:03
#8973
10K
6.21 mi11:13:2843:467:0321:52
7:03
#8922
15K
9.32 mi11:35:081:05:267:0221:40
6:59
#8714
20K
12.43 mi11:57:191:27:377:0422:11
7:09
#8730
HALF
13.11 mi12:02:071:32:257:034:48
7:03
#8738
25K
15.53 mi12:19:391:49:577:0517:32
7:14
#8749
30K
18.64 mi12:43:012:13:197:1023:22
7:32
#8850
20M
20.00 mi12:53:122:23:307:1110:11
7:30
#8823
21M
21.00 mi13:01:092:31:277:137:57
7:57
#8828
35K
21.75 mi13:06:372:36:557:135:28
7:19
#8812
23M
23.00 mi13:16:062:46:247:159:29
7:35
#8811
24M
24.00 mi13:23:342:53:527:157:28
7:28
#8806
40K
24.85 mi13:30:123:00:307:166:38
7:46
#8845
25.2M
25.20 mi13:33:083:03:267:172:56
8:31
#8860
FINISH
26.22 mi13:40:523:11:107:187:44
7:36
#8937
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi8973140214028426(Top 29%)1275(Top 10%)1275(Top 73%)
10K6.21 mi3.10 mi8922+511424-221424-228977(Top 31%)1467(Top 12%)1467(Top 84%)
15K9.32 mi3.11 mi8714+2081355+691355+698426(Top 29%)1275(Top 10%)1275(Top 73%)
20K12.43 mi3.11 mi8730-161375-201375-208893(Top 31%)1517(Top 12%)1517(Top 87%)
HALF13.11 mi0.68 mi8738-81387-121387-129059(Top 31%)1542(Top 12%)1542(Top 89%)
25K15.53 mi2.42 mi8749-111399-121399-129138(Top 31%)1712(Top 14%)1712(Top 99%)
30K18.64 mi3.11 mi8850-1011488-891488-899832(Top 34%)2191(Top 17%)2191(Top 126%)
20M20.00 mi1.36 mi8823+271516-281516-289121(Top 31%)1958(Top 16%)1958(Top 113%)
21M21.00 mi1.00 mi8828-51538-221538-229566(Top 33%)2285(Top 18%)2285(Top 132%)
35K21.75 mi0.75 mi8812+161555-171555-179381(Top 32%)2183(Top 17%)2183(Top 126%)
23M23.00 mi1.25 mi8811+11602-471602-479436(Top 33%)2292(Top 18%)2292(Top 132%)
24M24.00 mi1.00 mi8806+51610-81610-89832(Top 34%)2580(Top 21%)2580(Top 149%)
40K24.85 mi0.85 mi8845-391664-541664-5410746(Top 37%)3122(Top 25%)3122(Top 180%)
25.2M25.20 mi0.35 mi8860-151686-221686-2211683(Top 40%)3670(Top 29%)3670(Top 211%)
FINISH26.22 mi1.02 mi8937-771740-541740-5412113(Top 42%)3906(Top 31%)3906(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21
+97ft-345ft

Overall

8426

Females

1275

F40-44

1275

5K→10K

3.1 - 6.2 mi

Top 31%
×5
+79ft-138ft

Overall

8977

Females

1467

F40-44

1467

10K→15K

6.2 - 9.3 mi

Top 29%
×3
+67ft-78ft

Overall

8426

Females

1275

F40-44

1275

15K→20K

9.3 - 12.4 mi

Top 31%
×5
+106ft-86ft

Overall

8893

Females

1517

F40-44

1517

20K→HALF

12.4 - 13.1 mi

Top 31%
×2
+19ft-37ft

Overall

9059

Females

1542

F40-44

1542

HALF→25K

13.1 - 15.5 mi

Top 31%
×4
+66ft-88ft

Overall

9138

Females

1712

F40-44

1712

25K→30K

15.5 - 18.6 mi

Top 34%
×9
+181ft-148ft

Overall

9832

Females

2191

F40-44

2191

30K→20M

18.6 - 20.0 mi

Top 31%
×5
+64ft-50ft

Overall

9121

Females

1958

F40-44

1958

20M→21M

20.0 - 21.0 mi

Top 33%
×8
+106ft-24ft

Overall

9566

Females

2285

F40-44

2285

21M→35K

21.0 - 21.8 mi

Top 32%
×7
+17ft-86ft

Overall

9381

Females

2183

F40-44

2183

35K→23M

21.8 - 23.0 mi

Top 33%
×5
+23ft-63ft

Overall

9436

Females

2292

F40-44

2292

23M→24M

23.0 - 24.0 mi

Top 34%
×6
+12ft-82ft

Overall

9832

Females

2580

F40-44

2580

24M→40K

24.0 - 24.9 mi

Top 37%
×1
+6ft-20ft

Overall

10746

Females

3122

F40-44

3122

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1
+13ft-16ft

Overall

11683

Females

3670

F40-44

3670

25.2M→FINISH

25.2 - 26.2 mi

Top 42%
×2
+22ft-21ft

Overall

12113

Females

3906

F40-44

3906

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1426*
Passed By
1351
Net Change
+36
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8973
5K → 10K241*190+51#8973#8922
10K → 15K263*55+208#8922#8714
15K → 20K118134-16#8714#8730
20K → HALF2735-8#8730#8738
HALF → 25K102113-11#8738#8749
25K → 30K138200-101#8749#8850
30K → 20M10174+27#8850#8823
20M → 21M8287-5#8823#8828
21M → 35K6347+16#8828#8812
35K → 23M109108+1#8812#8811
23M → 24M6762+5#8811#8806
24M → 40K4988-39#8806#8845
40K → 25.2M2439-15#8845#8860
25.2M → FINISH42119-77#8860#8937
TOTALS1426*1351+36

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing