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BOSTON MARATHON 2025

Nicole Shelton

Bib: 14088•F

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 25%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 15%
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
7:16/mi
22:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
44:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:07/mi
1:07:07
↑ 67↓ 78
20K· 12.43 mi
7:09/mi
1:29:19
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:34:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:08/mi
1:51:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:16/mi
2:13:57
↑ 181↓ 1480.2%
20M
7:24/mi
2:24:01
↑ 64↓ 500.2%
21M
7:42/mi
2:31:43
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:36:55
↑ 17↓ 861.7%
23M
7:20/mi
2:46:06
↑ 23↓ 630.6%
24M
7:07/mi
2:53:13
↓ 821.3%
40K· 24.85 mi
7:23/mi
2:59:32
↓ 200.3%
25.2M
7:56/mi
3:02:16
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:09:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:05
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:35:40
Pace7:18 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0722:367:1622:36
7:16
-
10K
6.21 mi11:15:3044:597:1422:23
7:12
-0:04
15K
9.32 mi11:37:381:07:077:1222:08
7:07
-0:05
20K
12.43 mi11:59:501:29:197:1122:12
7:09
+0:02
Half
13.11 mi12:04:361:34:057:114:46
6:59
-0:10
25K
15.53 mi12:21:541:51:237:1017:18
7:08
+0:09
30K
18.64 mi12:44:282:13:577:1122:34
7:16
+0:08
20M
20.00 mi12:54:322:24:017:1210:04
7:24
+0:08
21M
21.00 mi13:02:142:31:437:137:42
7:42
+0:18
35K
21.75 mi13:07:262:36:557:135:12
6:57
-0:45
23M
23.00 mi13:16:372:46:067:139:11
7:20
+0:23
24M
24.00 mi13:23:442:53:137:137:07
7:07
-0:13
40K
24.85 mi13:30:032:59:327:136:19
7:23
+0:16
25.2M
25.20 mi13:32:473:02:167:142:44
7:56
+0:33
Finish
26.22 mi13:40:163:09:457:157:29
7:21
-0:35

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

6:57 /mi

Average Pace

7:15 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:19

95% of race

Time at Steady Pace

10:26

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:53:0722:367:1622:36
7:16
#10103
10K
6.21 mi11:15:3044:597:1422:23
7:12
#9801
15K
9.32 mi11:37:381:07:077:1222:08
7:07
#9352
20K
12.43 mi11:59:501:29:197:1122:12
7:09
#8871
Half
13.11 mi12:04:361:34:057:114:46
6:59
#8768
25K
15.53 mi12:21:541:51:237:1017:18
7:08
#8431
30K
18.64 mi12:44:282:13:577:1122:34
7:16
#7940
20M
20.00 mi12:54:322:24:017:1210:04
7:24
#7751
21M
21.00 mi13:02:142:31:437:137:42
7:42
#7550
35K
21.75 mi13:07:262:36:557:135:12
6:57
#7419
23M
23.00 mi13:16:372:46:067:139:11
7:20
#7252
24M
24.00 mi13:23:442:53:137:137:07
7:07
#7120
40K
24.85 mi13:30:032:59:327:136:19
7:23
#7039
25.2M
25.20 mi13:32:473:02:167:142:44
7:56
#6994
Finish
26.22 mi13:40:163:09:457:157:29
7:21
#6986
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10103184718478508(Top 30%)1232(Top 10%)1232(Top 23%)
10K6.21 mi3.10 mi9801+3021709+1381709+1389530(Top 34%)1606(Top 13%)1606(Top 29%)
15K9.32 mi3.11 mi9352+4491539+1701539+1708508(Top 30%)1232(Top 10%)1232(Top 23%)
20K12.43 mi3.11 mi8871+4811360+1791360+1797801(Top 27%)1034(Top 8%)1034(Top 19%)
Half13.11 mi0.68 mi8768+1031330+301330+307560(Top 27%)929(Top 8%)929(Top 17%)
25K15.53 mi2.42 mi8431+3371212+1181212+1187204(Top 25%)928(Top 8%)928(Top 17%)
30K18.64 mi3.11 mi7940+4911086+1261086+1266262(Top 22%)754(Top 6%)754(Top 14%)
20M20.00 mi1.36 mi7751+1891043+431043+436453(Top 23%)943(Top 8%)943(Top 17%)
21M21.00 mi1.00 mi7550+2011015+281015+285665(Top 20%)807(Top 7%)807(Top 15%)
35K21.75 mi0.75 mi7419+131991+24991+245108(Top 18%)640(Top 5%)640(Top 12%)
23M23.00 mi1.25 mi7252+167976+15976+155678(Top 20%)881(Top 7%)881(Top 16%)
24M24.00 mi1.00 mi7120+132958+18958+185335(Top 19%)836(Top 7%)836(Top 15%)
40K24.85 mi0.85 mi7039+81960-2960-26157(Top 22%)1197(Top 10%)1197(Top 22%)
25.2M25.20 mi0.35 mi6994+45953+7953+75636(Top 20%)1099(Top 9%)1099(Top 20%)
Finish26.22 mi1.02 mi6986+8982-29982-298086(Top 28%)2094(Top 17%)2094(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8508

Females

1232

F18-39

1232

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9530

Females

1606

F18-39

1606

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8508

Females

1232

F18-39

1232

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7801

Females

1034

F18-39

1034

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7560

Females

929

F18-39

929

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7204

Females

928

F18-39

928

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

6262

Females

754

F18-39

754

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6453

Females

943

F18-39

943

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5665

Females

807

F18-39

807

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5108

Females

640

F18-39

640

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5678

Females

881

F18-39

881

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5335

Females

836

F18-39

836

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6157

Females

1197

F18-39

1197

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5636

Females

1099

F18-39

1099

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8086

Females

2094

F18-39

2094

Passing Analysis

Category:
Athletes Passed
3427
Passed By
310
Net Change
+3117
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10103
5K → 10K411109+302#10103#9801
10K → 15K46415+449#9801#9352
15K → 20K49312+481#9352#8871
20K → Half1052+103#8871#8768
Half → 25K35013+337#8768#8431
25K → 30K5009+491#8431#7940
30K → 20M1978+189#7940#7751
20M → 21M21312+201#7751#7550
21M → 35K1354+131#7550#7419
35K → 23M18013+167#7419#7252
23M → 24M14513+132#7252#7120
24M → 40K10726+81#7120#7039
40K → 25.2M527+45#7039#6994
25.2M → Finish7567+8#6994#6986
TOTALS3427310+3117
📊

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