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BOSTON MARATHON 2025

Shannon Alvino

Bib: 31195•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
9:32/mi
29:36
↑ 97↓ 3451.5%
10K· 6.21 mi
8:45/mi
56:46
↑ 79↓ 1380.4%
15K· 9.32 mi
9:00/mi
1:24:43
↑ 67↓ 78
20K· 12.43 mi
9:09/mi
1:53:08
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:59:19
↑ 19↓ 370.5%
25K· 15.53 mi
9:13/mi
2:21:41
↑ 66↓ 880.2%
30K· 18.64 mi
9:37/mi
2:51:34
↑ 181↓ 1480.2%
20M
9:32/mi
3:04:31
↑ 64↓ 500.2%
21M
9:59/mi
3:14:30
↑ 106↓ 241.6%
35K· 21.75 mi
9:11/mi
3:21:22
↑ 17↓ 861.7%
23M
9:24/mi
3:33:08
↑ 23↓ 630.6%
24M
9:07/mi
3:42:15
↓ 821.3%
40K· 24.85 mi
8:59/mi
3:49:56
↓ 200.3%
25.2M
9:34/mi
3:53:14
↑ 13↓ 160.2%
Finish· 26.22 mi
8:56/mi
4:02:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:19
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:03:01
Pace9:23 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1929:369:3229:36
9:32
-
10K
6.21 mi12:18:2956:469:0827:10
8:45
-0:47
15K
9.32 mi12:46:261:24:439:0527:57
9:00
+0:15
20K
12.43 mi13:14:511:53:089:0628:25
9:09
+0:09
Half
13.11 mi13:21:021:59:199:066:11
9:04
-0:05
25K
15.53 mi13:43:242:21:419:0722:22
9:13
+0:09
30K
18.64 mi14:13:172:51:349:1229:53
9:37
+0:24
20M
20.00 mi14:26:143:04:319:1412:57
9:32
-0:05
21M
21.00 mi14:36:133:14:309:169:59
9:59
+0:27
35K
21.75 mi14:43:053:21:229:166:52
9:11
-0:48
23M
23.00 mi14:54:513:33:089:1611:46
9:24
+0:13
24M
24.00 mi15:03:583:42:159:169:07
9:07
-0:17
40K
24.85 mi15:11:393:49:569:157:41
8:59
-0:08
25.2M
25.20 mi15:14:573:53:149:153:18
9:34
+0:35
Finish
26.22 mi15:24:034:02:209:159:06
8:56
-0:38

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

8:45 /mi

Average Pace

9:15 /mi

Slowest Pace

9:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:52:21

96% of race

Time at Steady Pace

9:59

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:15 /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 mi11:51:1929:369:3229:36
9:32
#24337
10K
6.21 mi12:18:2956:469:0827:10
8:45
#22968
15K
9.32 mi12:46:261:24:439:0527:57
9:00
#22653
20K
12.43 mi13:14:511:53:089:0628:25
9:09
#22375
Half
13.11 mi13:21:021:59:199:066:11
9:04
#22353
25K
15.53 mi13:43:242:21:419:0722:22
9:13
#22107
30K
18.64 mi14:13:172:51:349:1229:53
9:37
#21778
20M
20.00 mi14:26:143:04:319:1412:57
9:32
#21572
21M
21.00 mi14:36:133:14:309:169:59
9:59
#21366
35K
21.75 mi14:43:053:21:229:166:52
9:11
#21288
23M
23.00 mi14:54:513:33:089:1611:46
9:24
#21087
24M
24.00 mi15:03:583:42:159:169:07
9:07
#20975
40K
24.85 mi15:11:393:49:569:157:41
8:59
#20823
25.2M
25.20 mi15:14:573:53:149:153:18
9:34
#20746
Finish
26.22 mi15:24:034:02:209:159:06
8:56
#20676
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi243379866986622021(Top 78%)8564(Top 70%)8564(Top 157%)
10K6.21 mi3.10 mi22968+13699133+7339133+73321131(Top 74%)8100(Top 66%)8100(Top 148%)
15K9.32 mi3.11 mi22653+3158938+1958938+19522021(Top 78%)8564(Top 70%)8564(Top 157%)
20K12.43 mi3.11 mi22375+2788799+1398799+13921662(Top 76%)8406(Top 69%)8406(Top 154%)
Half13.11 mi0.68 mi22353+228796+38796+322094(Top 78%)8651(Top 71%)8651(Top 158%)
25K15.53 mi2.42 mi22107+2468659+1378659+13720882(Top 74%)8025(Top 66%)8025(Top 147%)
30K18.64 mi3.11 mi21778+3298497+1628497+16220427(Top 72%)7890(Top 65%)7890(Top 144%)
20M20.00 mi1.36 mi21572+2068401+968401+9619332(Top 68%)7443(Top 61%)7443(Top 136%)
21M21.00 mi1.00 mi21366+2068319+828319+8218257(Top 64%)6928(Top 57%)6928(Top 127%)
35K21.75 mi0.75 mi21288+788284+358284+3519122(Top 67%)7517(Top 61%)7517(Top 137%)
23M23.00 mi1.25 mi21087+2018208+768208+7618253(Top 64%)7115(Top 58%)7115(Top 130%)
24M24.00 mi1.00 mi20975+1128167+418167+4117997(Top 63%)7044(Top 58%)7044(Top 129%)
40K24.85 mi0.85 mi20823+1528100+678100+6716275(Top 57%)6207(Top 51%)6207(Top 113%)
25.2M25.20 mi0.35 mi20746+778068+328068+3215063(Top 53%)5610(Top 46%)5610(Top 103%)
Finish26.22 mi1.02 mi20676+708040+288040+2818702(Top 66%)7437(Top 61%)7437(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22021

Females

8564

F18-39

8564

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

21131

Females

8100

F18-39

8100

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22021

Females

8564

F18-39

8564

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21662

Females

8406

F18-39

8406

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22094

Females

8651

F18-39

8651

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

20882

Females

8025

F18-39

8025

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20427

Females

7890

F18-39

7890

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19332

Females

7443

F18-39

7443

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18257

Females

6928

F18-39

6928

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

19122

Females

7517

F18-39

7517

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18253

Females

7115

F18-39

7115

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

17997

Females

7044

F18-39

7044

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16275

Females

6207

F18-39

6207

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15063

Females

5610

F18-39

5610

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18702

Females

7437

F18-39

7437

Passing Analysis

Category:
Athletes Passed
3953
Passed By
292
Net Change
+3661
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24337
5K → 10K13789+1369#24337#22968
10K → 15K36651+315#22968#22653
15K → 20K32244+278#22653#22375
20K → Half4321+22#22375#22353
Half → 25K28236+246#22353#22107
25K → 30K38556+329#22107#21778
30K → 20M22014+206#21778#21572
20M → 21M2137+206#21572#21366
21M → 35K9012+78#21366#21288
35K → 23M21514+201#21288#21087
23M → 24M1197+112#21087#20975
24M → 40K1597+152#20975#20823
40K → 25.2M770+77#20823#20746
25.2M → Finish8414+70#20746#20676
TOTALS3953292+3661
📊

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