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BOSTON MARATHON 2025

Natalie Parks

Bib: 25083•F

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 35%
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
8:57/mi
27:49
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
55:19
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:23:51
↑ 67↓ 78
20K· 12.43 mi
9:33/mi
1:53:31
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
1:59:38
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:22:27
↑ 66↓ 880.2%
30K· 18.64 mi
10:02/mi
2:53:38
↑ 181↓ 1480.2%
20M
9:38/mi
3:06:43
↑ 64↓ 500.2%
21M
10:36/mi
3:17:19
↑ 106↓ 241.6%
35K· 21.75 mi
9:09/mi
3:24:10
↑ 17↓ 861.7%
23M
9:31/mi
3:36:05
↑ 23↓ 630.6%
24M
9:11/mi
3:45:16
↓ 821.3%
40K· 24.85 mi
9:38/mi
3:53:30
↓ 200.3%
25.2M
10:55/mi
3:57:16
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
4:06:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:38
Pace9:08 /mi
2nd Half
Distance13.11 mi
Time2:07:03
Pace9:42 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:5527:498:5727:49
8:57
-
10K
6.21 mi11:56:2555:198:5427:30
8:51
-0:06
15K
9.32 mi12:24:571:23:519:0028:32
9:11
+0:20
20K
12.43 mi12:54:371:53:319:0829:40
9:33
+0:22
Half
13.11 mi13:00:441:59:389:086:07
8:58
-0:35
25K
15.53 mi13:23:332:22:279:1022:49
9:25
+0:27
30K
18.64 mi13:54:442:53:389:1931:11
10:02
+0:37
20M
20.00 mi14:07:493:06:439:2013:05
9:38
-0:24
21M
21.00 mi14:18:253:17:199:2410:36
10:36
+0:58
35K
21.75 mi14:25:163:24:109:236:51
9:09
-1:27
23M
23.00 mi14:37:113:36:059:2411:55
9:31
+0:22
24M
24.00 mi14:46:223:45:169:239:11
9:11
-0:20
40K
24.85 mi14:54:363:53:309:248:14
9:38
+0:27
25.2M
25.20 mi14:58:223:57:169:253:46
10:55
+1:17
Finish
26.22 mi15:07:474:06:419:259:25
9:14
-1:41

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

8:51 /mi

Average Pace

9:25 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:26

25% of race

Time at Steady Pace

2:19:42

57% of race

Time at Slower Pace

45:33

18% of race

Average Pace: 9:24 /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 mi11:28:5527:498:5727:49
8:57
#22224
10K
6.21 mi11:56:2555:198:5427:30
8:51
#21971
15K
9.32 mi12:24:571:23:519:0028:32
9:11
#22261
20K
12.43 mi12:54:371:53:319:0829:40
9:33
#22499
Half
13.11 mi13:00:441:59:389:086:07
8:58
#22451
25K
15.53 mi13:23:332:22:279:1022:49
9:25
#22331
30K
18.64 mi13:54:442:53:389:1931:11
10:02
#22206
20M
20.00 mi14:07:493:06:439:2013:05
9:38
#22024
21M
21.00 mi14:18:253:17:199:2410:36
10:36
#21903
35K
21.75 mi14:25:163:24:109:236:51
9:09
#21796
23M
23.00 mi14:37:113:36:059:2411:55
9:31
#21603
24M
24.00 mi14:46:223:45:169:239:11
9:11
#21459
40K
24.85 mi14:54:363:53:309:248:14
9:38
#21365
25.2M
25.20 mi14:58:223:57:169:253:46
10:55
#21346
Finish
26.22 mi15:07:474:06:419:259:25
9:14
#21292
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi222248752875222808(Top 80%)9001(Top 74%)9001(Top 1442%)
10K6.21 mi3.10 mi21971+2538594+1588594+15821656(Top 76%)8402(Top 69%)8402(Top 1346%)
15K9.32 mi3.11 mi22261-2908730-1368730-13622808(Top 80%)9001(Top 74%)9001(Top 1442%)
20K12.43 mi3.11 mi22499-2388864-1348864-13423050(Top 81%)9175(Top 75%)9175(Top 1470%)
Half13.11 mi0.68 mi22451+488841+238841+2321707(Top 76%)8426(Top 69%)8426(Top 1350%)
25K15.53 mi2.42 mi22331+1208777+648777+6421588(Top 76%)8415(Top 69%)8415(Top 1349%)
30K18.64 mi3.11 mi22206+1258735+428735+4221704(Top 76%)8616(Top 70%)8616(Top 1381%)
20M20.00 mi1.36 mi22024+1828652+838652+8319718(Top 69%)7646(Top 63%)7646(Top 1225%)
21M21.00 mi1.00 mi21903+1218608+448608+4420330(Top 72%)8092(Top 66%)8092(Top 1297%)
35K21.75 mi0.75 mi21796+1078567+418567+4119026(Top 67%)7477(Top 61%)7477(Top 1198%)
23M23.00 mi1.25 mi21603+1938490+778490+7718804(Top 66%)7411(Top 61%)7411(Top 1188%)
24M24.00 mi1.00 mi21459+1448428+628428+6218309(Top 64%)7211(Top 59%)7211(Top 1156%)
40K24.85 mi0.85 mi21365+948399+298399+2919231(Top 68%)7751(Top 63%)7751(Top 1242%)
25.2M25.20 mi0.35 mi21346+198399839920426(Top 72%)8374(Top 68%)8374(Top 1342%)
Finish26.22 mi1.02 mi21292+548382+178382+1720158(Top 71%)8236(Top 67%)8236(Top 1320%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22808

Females

9001

F60-64

9001

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21656

Females

8402

F60-64

8402

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22808

Females

9001

F60-64

9001

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

23050

Females

9175

F60-64

9175

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21707

Females

8426

F60-64

8426

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21588

Females

8415

F60-64

8415

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21704

Females

8616

F60-64

8616

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

19718

Females

7646

F60-64

7646

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20330

Females

8092

F60-64

8092

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

19026

Females

7477

F60-64

7477

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18804

Females

7411

F60-64

7411

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18309

Females

7211

F60-64

7211

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19231

Females

7751

F60-64

7751

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20426

Females

8374

F60-64

8374

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20158

Females

8236

F60-64

8236

Passing Analysis

Category:
Athletes Passed
2141
Passed By
1209
Net Change
+932
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22224
5K → 10K407154+253#22224#21971
10K → 15K111401-290#21971#22261
15K → 20K104342-238#22261#22499
20K → Half6214+48#22499#22451
Half → 25K20080+120#22451#22331
25K → 30K246121+125#22331#22206
30K → 20M19412+182#22206#22024
20M → 21M14019+121#22024#21903
21M → 35K1114+107#21903#21796
35K → 23M1996+193#21796#21603
23M → 24M1495+144#21603#21459
24M → 40K10713+94#21459#21365
40K → 25.2M3718+19#21365#21346
25.2M → Finish7420+54#21346#21292
TOTALS21411209+932
📊

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