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BOSTON MARATHON 2025

Alannah Sheridan

Bib: 17490•F

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0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 30%
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
7:30/mi
23:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:09:59
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:33:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:38:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:56:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:20:47
↑ 181↓ 1480.2%
20M
7:32/mi
2:31:01
↑ 64↓ 500.2%
21M
7:48/mi
2:38:49
↑ 106↓ 241.6%
35K· 21.75 mi
7:29/mi
2:44:25
↑ 17↓ 861.7%
23M
7:51/mi
2:54:15
↑ 23↓ 630.6%
24M
7:44/mi
3:01:59
↓ 821.3%
40K· 24.85 mi
7:43/mi
3:08:35
↓ 200.3%
25.2M
8:07/mi
3:11:23
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:18:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:31
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:39:54
Pace7:37 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4423:187:3023:18
7:30
-
10K
6.21 mi11:37:0946:437:3123:25
7:32
+0:02
15K
9.32 mi12:00:251:09:597:3123:16
7:29
-0:03
20K
12.43 mi12:23:521:33:267:3123:27
7:33
+0:04
Half
13.11 mi12:28:571:38:317:315:05
7:27
-0:06
25K
15.53 mi12:47:241:56:587:3218:27
7:37
+0:10
30K
18.64 mi13:11:132:20:477:3323:49
7:40
+0:03
20M
20.00 mi13:21:272:31:017:3310:14
7:32
-0:08
21M
21.00 mi13:29:152:38:497:347:48
7:48
+0:16
35K
21.75 mi13:34:512:44:257:345:36
7:29
-0:19
23M
23.00 mi13:44:412:54:157:359:50
7:51
+0:22
24M
24.00 mi13:52:253:01:597:357:44
7:44
-0:07
40K
24.85 mi13:59:013:08:357:356:36
7:43
-0:01
25.2M
25.20 mi14:01:493:11:237:362:48
8:07
+0:24
Finish
26.22 mi14:08:513:18:257:347:02
6:54
-1:13

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

6:54 /mi

Average Pace

7:34 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:23

61% of race

Time at Steady Pace

1:17:02

39% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi11:13:4423:187:3023:18
7:30
#12256
10K
6.21 mi11:37:0946:437:3123:25
7:32
#12300
15K
9.32 mi12:00:251:09:597:3123:16
7:29
#12062
20K
12.43 mi12:23:521:33:267:3123:27
7:33
#11795
Half
13.11 mi12:28:571:38:317:315:05
7:27
#11762
25K
15.53 mi12:47:241:56:587:3218:27
7:37
#11585
30K
18.64 mi13:11:132:20:477:3323:49
7:40
#11052
20M
20.00 mi13:21:272:31:017:3310:14
7:32
#10702
21M
21.00 mi13:29:152:38:497:347:48
7:48
#10358
35K
21.75 mi13:34:512:44:257:345:36
7:29
#10272
23M
23.00 mi13:44:412:54:157:359:50
7:51
#10154
24M
24.00 mi13:52:253:01:597:357:44
7:44
#10087
40K
24.85 mi13:59:013:08:357:356:36
7:43
#9979
25.2M
25.20 mi14:01:493:11:237:362:48
8:07
#9896
Finish
26.22 mi14:08:513:18:257:347:02
6:54
#9650
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122562932293211685(Top 41%)2731(Top 22%)2731(Top 50%)
10K6.21 mi3.10 mi12300-442958-262958-2612439(Top 44%)3052(Top 25%)3052(Top 56%)
15K9.32 mi3.11 mi12062+2382874+842874+8411685(Top 41%)2731(Top 22%)2731(Top 50%)
20K12.43 mi3.11 mi11795+2672760+1142760+11411152(Top 39%)2553(Top 21%)2553(Top 47%)
Half13.11 mi0.68 mi11762+332750+102750+1011338(Top 40%)2583(Top 21%)2583(Top 47%)
25K15.53 mi2.42 mi11585+1772697+532697+5310857(Top 38%)2505(Top 20%)2505(Top 46%)
30K18.64 mi3.11 mi11052+5332492+2052492+2058968(Top 32%)1825(Top 15%)1825(Top 33%)
20M20.00 mi1.36 mi10702+3502357+1352357+1357252(Top 26%)1254(Top 10%)1254(Top 23%)
21M21.00 mi1.00 mi10358+3442221+1362221+1366237(Top 22%)1015(Top 8%)1015(Top 19%)
35K21.75 mi0.75 mi10272+862197+242197+248564(Top 30%)1930(Top 16%)1930(Top 35%)
23M23.00 mi1.25 mi10154+1182185+122185+128977(Top 32%)2243(Top 18%)2243(Top 41%)
24M24.00 mi1.00 mi10087+672182+32182+39358(Top 33%)2491(Top 20%)2491(Top 46%)
40K24.85 mi0.85 mi9979+1082164+182164+188250(Top 29%)2099(Top 17%)2099(Top 38%)
25.2M25.20 mi0.35 mi9896+832142+222142+226684(Top 24%)1512(Top 12%)1512(Top 28%)
Finish26.22 mi1.02 mi9650+2462072+702072+705152(Top 18%)925(Top 8%)925(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11685

Females

2731

F18-39

2731

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12439

Females

3052

F18-39

3052

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11685

Females

2731

F18-39

2731

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11152

Females

2553

F18-39

2553

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11338

Females

2583

F18-39

2583

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10857

Females

2505

F18-39

2505

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8968

Females

1825

F18-39

1825

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7252

Females

1254

F18-39

1254

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6237

Females

1015

F18-39

1015

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8564

Females

1930

F18-39

1930

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

8977

Females

2243

F18-39

2243

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9358

Females

2491

F18-39

2491

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8250

Females

2099

F18-39

2099

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6684

Females

1512

F18-39

1512

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

5152

Females

925

F18-39

925

Passing Analysis

Category:
Athletes Passed
3289*
Passed By
683
Net Change
+2606
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12256
5K → 10K236280-44#12256#12300
10K → 15K32486+238#12300#12062
15K → 20K33164+267#12062#11795
20K → Half4815+33#11795#11762
Half → 25K24972+177#11762#11585
25K → 30K55825+533#11585#11052
30K → 20M3544+350#11052#10702
20M → 21M3462+344#10702#10358
21M → 35K10216+86#10358#10272
35K → 23M16345+118#10272#10154
23M → 24M10538+67#10154#10087
24M → 40K138*30+108#10087#9979
40K → 25.2M885+83#9979#9896
25.2M → Finish2471+246#9896#9650
TOTALS3289*683+2606

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

📊

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